Home / 20,387,306.27-28,130,404.33-11,688,207.59

Finding the Fourth Proportional to 20,387,306.27, 28,130,404.33 and 11,688,207.59

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Solution

The fourth proportional to 20,387,306.27, 28,130,404.33 and 11,688,207.59 is: 16,127,388.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,387,306.27 : 28,130,404.33 = 11,688,207.59 : x
  2. Step 2: Convert to fraction form
    20,387,306.27/28,130,404.33 = 11,688,207.59/x
  3. Step 3: Cross multiply
    20,387,306.27x = 28,130,404.33 × 11,688,207.59
  4. Step 4: Simplify right side
    20,387,306.27x = 328,794,005,399,674.81
  5. Step 5: Solve for x
    x = 328,794,005,399,674.81/20,387,306.27
  6. Step 6: Final answer
    x = 16,127,388.34

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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.