Home / 1,657,162,117.40-2,485,743,176.10-430,330,568.90

Finding the Fourth Proportional to 1,657,162,117.40, 2,485,743,176.10 and 430,330,568.90

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Solution

The fourth proportional to 1,657,162,117.40, 2,485,743,176.10 and 430,330,568.90 is: 645,495,853.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,657,162,117.40 : 2,485,743,176.10 = 430,330,568.90 : x
  2. Step 2: Convert to fraction form
    1,657,162,117.40/2,485,743,176.10 = 430,330,568.90/x
  3. Step 3: Cross multiply
    1,657,162,117.40x = 2,485,743,176.10 × 430,330,568.90
  4. Step 4: Simplify right side
    1,657,162,117.40x = 1,069,691,275,110,405,760
  5. Step 5: Solve for x
    x = 1,069,691,275,110,405,760/1,657,162,117.40
  6. Step 6: Final answer
    x = 645,495,853.35

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Half scale
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Double scale
Find fourth proportional to 1,657,162,118.40, 2,485,743,177.60 and 430,330,569.90
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.