Home / 145,168,276.40-217,752,414.60-72,608,865.20

Finding the Fourth Proportional to 145,168,276.40, 217,752,414.60 and 72,608,865.20

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Solution

The fourth proportional to 145,168,276.40, 217,752,414.60 and 72,608,865.20 is: 108,913,297.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,168,276.40 : 217,752,414.60 = 72,608,865.20 : x
  2. Step 2: Convert to fraction form
    145,168,276.40/217,752,414.60 = 72,608,865.20/x
  3. Step 3: Cross multiply
    145,168,276.40x = 217,752,414.60 × 72,608,865.20
  4. Step 4: Simplify right side
    145,168,276.40x = 15,810,755,718,665,912
  5. Step 5: Solve for x
    x = 15,810,755,718,665,912/145,168,276.40
  6. Step 6: Final answer
    x = 108,913,297.80

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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.