Home / 71,902,791-99,226,201.52-39,307,743

Finding the Fourth Proportional to 71,902,791, 99,226,201.52 and 39,307,743

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Solution

The fourth proportional to 71,902,791, 99,226,201.52 and 39,307,743 is: 54,244,876.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,902,791 : 99,226,201.52 = 39,307,743 : x
  2. Step 2: Convert to fraction form
    71,902,791/99,226,201.52 = 39,307,743/x
  3. Step 3: Cross multiply
    71,902,791x = 99,226,201.52 × 39,307,743
  4. Step 4: Simplify right side
    71,902,791x = 3,900,358,028,214,369
  5. Step 5: Solve for x
    x = 3,900,358,028,214,369/71,902,791
  6. Step 6: Final answer
    x = 54,244,876.64

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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.