Home / 138,895,570.66-191,684,503.62-77,015,909.28

Finding the Fourth Proportional to 138,895,570.66, 191,684,503.62 and 77,015,909.28

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Solution

The fourth proportional to 138,895,570.66, 191,684,503.62 and 77,015,909.28 is: 106,286,732.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,895,570.66 : 191,684,503.62 = 77,015,909.28 : x
  2. Step 2: Convert to fraction form
    138,895,570.66/191,684,503.62 = 77,015,909.28/x
  3. Step 3: Cross multiply
    138,895,570.66x = 191,684,503.62 × 77,015,909.28
  4. Step 4: Simplify right side
    138,895,570.66x = 14,762,756,341,179,752
  5. Step 5: Solve for x
    x = 14,762,756,341,179,752/138,895,570.66
  6. Step 6: Final answer
    x = 106,286,732.33

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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.