Home / 20,336,605.13-28,068,588.45-12,081,253.52

Finding the Fourth Proportional to 20,336,605.13, 28,068,588.45 and 12,081,253.52

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Solution

The fourth proportional to 20,336,605.13, 28,068,588.45 and 12,081,253.52 is: 16,674,549.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,336,605.13 : 28,068,588.45 = 12,081,253.52 : x
  2. Step 2: Convert to fraction form
    20,336,605.13/28,068,588.45 = 12,081,253.52/x
  3. Step 3: Cross multiply
    20,336,605.13x = 28,068,588.45 × 12,081,253.52
  4. Step 4: Simplify right side
    20,336,605.13x = 339,103,732,872,650.94
  5. Step 5: Solve for x
    x = 339,103,732,872,650.94/20,336,605.13
  6. Step 6: Final answer
    x = 16,674,549.70

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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.