Home / 103,368,397.20-142,651,430.92-56,961,640.40

Finding the Fourth Proportional to 103,368,397.20, 142,651,430.92 and 56,961,640.40

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Solution

The fourth proportional to 103,368,397.20, 142,651,430.92 and 56,961,640.40 is: 78,608,740.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,368,397.20 : 142,651,430.92 = 56,961,640.40 : x
  2. Step 2: Convert to fraction form
    103,368,397.20/142,651,430.92 = 56,961,640.40/x
  3. Step 3: Cross multiply
    103,368,397.20x = 142,651,430.92 × 56,961,640.40
  4. Step 4: Simplify right side
    103,368,397.20x = 8,125,659,510,610,480
  5. Step 5: Solve for x
    x = 8,125,659,510,610,480/103,368,397.20
  6. Step 6: Final answer
    x = 78,608,740.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.