Home / 71,917,223.15-99,272,757.08-47,139,006.80

Finding the Fourth Proportional to 71,917,223.15, 99,272,757.08 and 47,139,006.80

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Solution

The fourth proportional to 71,917,223.15, 99,272,757.08 and 47,139,006.80 is: 65,069,519.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,917,223.15 : 99,272,757.08 = 47,139,006.80 : x
  2. Step 2: Convert to fraction form
    71,917,223.15/99,272,757.08 = 47,139,006.80/x
  3. Step 3: Cross multiply
    71,917,223.15x = 99,272,757.08 × 47,139,006.80
  4. Step 4: Simplify right side
    71,917,223.15x = 4,679,619,170,689,082
  5. Step 5: Solve for x
    x = 4,679,619,170,689,082/71,917,223.15
  6. Step 6: Final answer
    x = 65,069,519.73

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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.