Home / 72,417,802.07-99,937,086.98-39,377,814.47

Finding the Fourth Proportional to 72,417,802.07, 99,937,086.98 and 39,377,814.47

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Solution

The fourth proportional to 72,417,802.07, 99,937,086.98 and 39,377,814.47 is: 54,341,666.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,417,802.07 : 99,937,086.98 = 39,377,814.47 : x
  2. Step 2: Convert to fraction form
    72,417,802.07/99,937,086.98 = 39,377,814.47/x
  3. Step 3: Cross multiply
    72,417,802.07x = 99,937,086.98 × 39,377,814.47
  4. Step 4: Simplify right side
    72,417,802.07x = 3,935,304,069,573,803
  5. Step 5: Solve for x
    x = 3,935,304,069,573,803/72,417,802.07
  6. Step 6: Final answer
    x = 54,341,666.79

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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.