Home / 1,120,958,600.40-1,681,437,900.60-430,888,366.80

Finding the Fourth Proportional to 1,120,958,600.40, 1,681,437,900.60 and 430,888,366.80

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Solution

The fourth proportional to 1,120,958,600.40, 1,681,437,900.60 and 430,888,366.80 is: 646,332,550.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,958,600.40 : 1,681,437,900.60 = 430,888,366.80 : x
  2. Step 2: Convert to fraction form
    1,120,958,600.40/1,681,437,900.60 = 430,888,366.80/x
  3. Step 3: Cross multiply
    1,120,958,600.40x = 1,681,437,900.60 × 430,888,366.80
  4. Step 4: Simplify right side
    1,120,958,600.40x = 724,512,030,865,154,688
  5. Step 5: Solve for x
    x = 724,512,030,865,154,688/1,120,958,600.40
  6. Step 6: Final answer
    x = 646,332,550.20

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Double scale
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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.