Home / 28,156,808.64-38,856,396.24-15,279,752.64

Finding the Fourth Proportional to 28,156,808.64, 38,856,396.24 and 15,279,752.64

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Solution

The fourth proportional to 28,156,808.64, 38,856,396.24 and 15,279,752.64 is: 21,086,058.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,156,808.64 : 38,856,396.24 = 15,279,752.64 : x
  2. Step 2: Convert to fraction form
    28,156,808.64/38,856,396.24 = 15,279,752.64/x
  3. Step 3: Cross multiply
    28,156,808.64x = 38,856,396.24 × 15,279,752.64
  4. Step 4: Simplify right side
    28,156,808.64x = 593,716,123,029,026.12
  5. Step 5: Solve for x
    x = 593,716,123,029,026.12/28,156,808.64
  6. Step 6: Final answer
    x = 21,086,058.82

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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.