Home / 28,028,010.88-38,679,158.82-16,428,862.72

Finding the Fourth Proportional to 28,028,010.88, 38,679,158.82 and 16,428,862.72

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Solution

The fourth proportional to 28,028,010.88, 38,679,158.82 and 16,428,862.72 is: 22,672,125.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,028,010.88 : 38,679,158.82 = 16,428,862.72 : x
  2. Step 2: Convert to fraction form
    28,028,010.88/38,679,158.82 = 16,428,862.72/x
  3. Step 3: Cross multiply
    28,028,010.88x = 38,679,158.82 × 16,428,862.72
  4. Step 4: Simplify right side
    28,028,010.88x = 635,454,590,378,857.25
  5. Step 5: Solve for x
    x = 635,454,590,378,857.25/28,028,010.88
  6. Step 6: Final answer
    x = 22,672,125.86

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1.5x scale

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.