Home / 42,391,685.60-63,587,528.40-10,478,981.60

Finding the Fourth Proportional to 42,391,685.60, 63,587,528.40 and 10,478,981.60

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Solution

The fourth proportional to 42,391,685.60, 63,587,528.40 and 10,478,981.60 is: 15,718,472.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,391,685.60 : 63,587,528.40 = 10,478,981.60 : x
  2. Step 2: Convert to fraction form
    42,391,685.60/63,587,528.40 = 10,478,981.60/x
  3. Step 3: Cross multiply
    42,391,685.60x = 63,587,528.40 × 10,478,981.60
  4. Step 4: Simplify right side
    42,391,685.60x = 666,332,540,093,077.38
  5. Step 5: Solve for x
    x = 666,332,540,093,077.38/42,391,685.60
  6. Step 6: Final answer
    x = 15,718,472.40

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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.