Home / 20,385,693.99-28,132,262.28-11,218,336.74

Finding the Fourth Proportional to 20,385,693.99, 28,132,262.28 and 11,218,336.74

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Solution

The fourth proportional to 20,385,693.99, 28,132,262.28 and 11,218,336.74 is: 15,481,307.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,385,693.99 : 28,132,262.28 = 11,218,336.74 : x
  2. Step 2: Convert to fraction form
    20,385,693.99/28,132,262.28 = 11,218,336.74/x
  3. Step 3: Cross multiply
    20,385,693.99x = 28,132,262.28 × 11,218,336.74
  4. Step 4: Simplify right side
    20,385,693.99x = 315,597,191,515,040.19
  5. Step 5: Solve for x
    x = 315,597,191,515,040.19/20,385,693.99
  6. Step 6: Final answer
    x = 15,481,307.22

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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.