Home / 20,373,277.50-28,119,116.79-11,677,279.50

Finding the Fourth Proportional to 20,373,277.50, 28,119,116.79 and 11,677,279.50

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Solution

The fourth proportional to 20,373,277.50, 28,119,116.79 and 11,677,279.50 is: 16,116,934.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,373,277.50 : 28,119,116.79 = 11,677,279.50 : x
  2. Step 2: Convert to fraction form
    20,373,277.50/28,119,116.79 = 11,677,279.50/x
  3. Step 3: Cross multiply
    20,373,277.50x = 28,119,116.79 × 11,677,279.50
  4. Step 4: Simplify right side
    20,373,277.50x = 328,354,786,049,972.81
  5. Step 5: Solve for x
    x = 328,354,786,049,972.81/20,373,277.50
  6. Step 6: Final answer
    x = 16,116,934.85

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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.