Home / 120,017,764.11-165,651,158.96-72,964,839.45

Finding the Fourth Proportional to 120,017,764.11, 165,651,158.96 and 72,964,839.45

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Solution

The fourth proportional to 120,017,764.11, 165,651,158.96 and 72,964,839.45 is: 100,707,676.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,017,764.11 : 165,651,158.96 = 72,964,839.45 : x
  2. Step 2: Convert to fraction form
    120,017,764.11/165,651,158.96 = 72,964,839.45/x
  3. Step 3: Cross multiply
    120,017,764.11x = 165,651,158.96 × 72,964,839.45
  4. Step 4: Simplify right side
    120,017,764.11x = 12,086,710,218,222,830
  5. Step 5: Solve for x
    x = 12,086,710,218,222,830/120,017,764.11
  6. Step 6: Final answer
    x = 100,707,676.97

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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.