Home / 18,208,500.90-25,127,437.78-9,948,385.68

Finding the Fourth Proportional to 18,208,500.90, 25,127,437.78 and 9,948,385.68

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Solution

The fourth proportional to 18,208,500.90, 25,127,437.78 and 9,948,385.68 is: 13,728,611.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,208,500.90 : 25,127,437.78 = 9,948,385.68 : x
  2. Step 2: Convert to fraction form
    18,208,500.90/25,127,437.78 = 9,948,385.68/x
  3. Step 3: Cross multiply
    18,208,500.90x = 25,127,437.78 × 9,948,385.68
  4. Step 4: Simplify right side
    18,208,500.90x = 249,977,442,185,643
  5. Step 5: Solve for x
    x = 249,977,442,185,643/18,208,500.90
  6. Step 6: Final answer
    x = 13,728,611.90

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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.