Home / 147,712,387.20-203,832,419.52-81,632,094.72

Finding the Fourth Proportional to 147,712,387.20, 203,832,419.52 and 81,632,094.72

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Solution

The fourth proportional to 147,712,387.20, 203,832,419.52 and 81,632,094.72 is: 112,646,391.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,712,387.20 : 203,832,419.52 = 81,632,094.72 : x
  2. Step 2: Convert to fraction form
    147,712,387.20/203,832,419.52 = 81,632,094.72/x
  3. Step 3: Cross multiply
    147,712,387.20x = 203,832,419.52 × 81,632,094.72
  4. Step 4: Simplify right side
    147,712,387.20x = 16,639,267,377,263,418
  5. Step 5: Solve for x
    x = 16,639,267,377,263,418/147,712,387.20
  6. Step 6: Final answer
    x = 112,646,391.36

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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.