Home / 12,117,101.49-16,721,520.68-6,890,110.04

Finding the Fourth Proportional to 12,117,101.49, 16,721,520.68 and 6,890,110.04

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Solution

The fourth proportional to 12,117,101.49, 16,721,520.68 and 6,890,110.04 is: 9,508,306.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,117,101.49 : 16,721,520.68 = 6,890,110.04 : x
  2. Step 2: Convert to fraction form
    12,117,101.49/16,721,520.68 = 6,890,110.04/x
  3. Step 3: Cross multiply
    12,117,101.49x = 16,721,520.68 × 6,890,110.04
  4. Step 4: Simplify right side
    12,117,101.49x = 115,213,117,454,953.30
  5. Step 5: Solve for x
    x = 115,213,117,454,953.30/12,117,101.49
  6. Step 6: Final answer
    x = 9,508,306.71

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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.