Home / 28,545,877.20-39,393,688.44-15,493,292.58

Finding the Fourth Proportional to 28,545,877.20, 39,393,688.44 and 15,493,292.58

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Solution

The fourth proportional to 28,545,877.20, 39,393,688.44 and 15,493,292.58 is: 21,380,948.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,545,877.20 : 39,393,688.44 = 15,493,292.58 : x
  2. Step 2: Convert to fraction form
    28,545,877.20/39,393,688.44 = 15,493,292.58/x
  3. Step 3: Cross multiply
    28,545,877.20x = 39,393,688.44 × 15,493,292.58
  4. Step 4: Simplify right side
    28,545,877.20x = 610,337,941,012,110
  5. Step 5: Solve for x
    x = 610,337,941,012,110/28,545,877.20
  6. Step 6: Final answer
    x = 21,380,948.87

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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.