Home / 72,343,646.64-99,835,365.38-39,304,550.16

Finding the Fourth Proportional to 72,343,646.64, 99,835,365.38 and 39,304,550.16

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Solution

The fourth proportional to 72,343,646.64, 99,835,365.38 and 39,304,550.16 is: 54,240,894.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,343,646.64 : 99,835,365.38 = 39,304,550.16 : x
  2. Step 2: Convert to fraction form
    72,343,646.64/99,835,365.38 = 39,304,550.16/x
  3. Step 3: Cross multiply
    72,343,646.64x = 99,835,365.38 × 39,304,550.16
  4. Step 4: Simplify right side
    72,343,646.64x = 3,923,984,126,123,614.50
  5. Step 5: Solve for x
    x = 3,923,984,126,123,614.50/72,343,646.64
  6. Step 6: Final answer
    x = 54,240,894.79

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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.