Home / 28,031,697.28-38,674,684.20-15,639,781.60

Finding the Fourth Proportional to 28,031,697.28, 38,674,684.20 and 15,639,781.60

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Solution

The fourth proportional to 28,031,697.28, 38,674,684.20 and 15,639,781.60 is: 21,577,844.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,031,697.28 : 38,674,684.20 = 15,639,781.60 : x
  2. Step 2: Convert to fraction form
    28,031,697.28/38,674,684.20 = 15,639,781.60/x
  3. Step 3: Cross multiply
    28,031,697.28x = 38,674,684.20 × 15,639,781.60
  4. Step 4: Simplify right side
    28,031,697.28x = 604,863,614,336,970.75
  5. Step 5: Solve for x
    x = 604,863,614,336,970.75/28,031,697.28
  6. Step 6: Final answer
    x = 21,577,844.83

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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.