Home / 72,279,605.79-99,747,590.88-39,241,247.43

Finding the Fourth Proportional to 72,279,605.79, 99,747,590.88 and 39,241,247.43

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Solution

The fourth proportional to 72,279,605.79, 99,747,590.88 and 39,241,247.43 is: 54,153,863.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,279,605.79 : 99,747,590.88 = 39,241,247.43 : x
  2. Step 2: Convert to fraction form
    72,279,605.79/99,747,590.88 = 39,241,247.43/x
  3. Step 3: Cross multiply
    72,279,605.79x = 99,747,590.88 × 39,241,247.43
  4. Step 4: Simplify right side
    72,279,605.79x = 3,914,219,894,268,491
  5. Step 5: Solve for x
    x = 3,914,219,894,268,491/72,279,605.79
  6. Step 6: Final answer
    x = 54,153,863.34

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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.