Home / 28,120,096.72-38,807,027.40-15,897,468.88

Finding the Fourth Proportional to 28,120,096.72, 38,807,027.40 and 15,897,468.88

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Solution

The fourth proportional to 28,120,096.72, 38,807,027.40 and 15,897,468.88 is: 21,939,238.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,120,096.72 : 38,807,027.40 = 15,897,468.88 : x
  2. Step 2: Convert to fraction form
    28,120,096.72/38,807,027.40 = 15,897,468.88/x
  3. Step 3: Cross multiply
    28,120,096.72x = 38,807,027.40 × 15,897,468.88
  4. Step 4: Simplify right side
    28,120,096.72x = 616,933,510,416,807.38
  5. Step 5: Solve for x
    x = 616,933,510,416,807.38/28,120,096.72
  6. Step 6: Final answer
    x = 21,939,238.57

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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.