Home / 20,791,167.40-28,690,354.47-12,088,722.61

Finding the Fourth Proportional to 20,791,167.40, 28,690,354.47 and 12,088,722.61

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Solution

The fourth proportional to 20,791,167.40, 28,690,354.47 and 12,088,722.61 is: 16,681,590.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,791,167.40 : 28,690,354.47 = 12,088,722.61 : x
  2. Step 2: Convert to fraction form
    20,791,167.40/28,690,354.47 = 12,088,722.61/x
  3. Step 3: Cross multiply
    20,791,167.40x = 28,690,354.47 × 12,088,722.61
  4. Step 4: Simplify right side
    20,791,167.40x = 346,829,736,770,403.56
  5. Step 5: Solve for x
    x = 346,829,736,770,403.56/20,791,167.40
  6. Step 6: Final answer
    x = 16,681,590.32

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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.