Home / 28,913,474.91-39,900,655.98-15,860,839.26

Finding the Fourth Proportional to 28,913,474.91, 39,900,655.98 and 15,860,839.26

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Solution

The fourth proportional to 28,913,474.91, 39,900,655.98 and 15,860,839.26 is: 21,887,991.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,913,474.91 : 39,900,655.98 = 15,860,839.26 : x
  2. Step 2: Convert to fraction form
    28,913,474.91/39,900,655.98 = 15,860,839.26/x
  3. Step 3: Cross multiply
    28,913,474.91x = 39,900,655.98 × 15,860,839.26
  4. Step 4: Simplify right side
    28,913,474.91x = 632,857,890,867,337.75
  5. Step 5: Solve for x
    x = 632,857,890,867,337.75/28,913,474.91
  6. Step 6: Final answer
    x = 21,887,991.42

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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.