Home / 1,120,129,543.20-1,680,194,314.80-1,009,164,662.40

Finding the Fourth Proportional to 1,120,129,543.20, 1,680,194,314.80 and 1,009,164,662.40

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Solution

The fourth proportional to 1,120,129,543.20, 1,680,194,314.80 and 1,009,164,662.40 is: 1,513,746,993.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,129,543.20 : 1,680,194,314.80 = 1,009,164,662.40 : x
  2. Step 2: Convert to fraction form
    1,120,129,543.20/1,680,194,314.80 = 1,009,164,662.40/x
  3. Step 3: Cross multiply
    1,120,129,543.20x = 1,680,194,314.80 × 1,009,164,662.40
  4. Step 4: Simplify right side
    1,120,129,543.20x = 1,695,592,728,461,541,120
  5. Step 5: Solve for x
    x = 1,695,592,728,461,541,120/1,120,129,543.20
  6. Step 6: Final answer
    x = 1,513,746,993.60

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Double scale
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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.