Home / 21,002,430.60-31,466,321.10-18,016,446.60

Finding the Fourth Proportional to 21,002,430.60, 31,466,321.10 and 18,016,446.60

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Solution

The fourth proportional to 21,002,430.60, 31,466,321.10 and 18,016,446.60 is: 26,992,651.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,002,430.60 : 31,466,321.10 = 18,016,446.60 : x
  2. Step 2: Convert to fraction form
    21,002,430.60/31,466,321.10 = 18,016,446.60/x
  3. Step 3: Cross multiply
    21,002,430.60x = 31,466,321.10 × 18,016,446.60
  4. Step 4: Simplify right side
    21,002,430.60x = 566,911,293,796,603.38
  5. Step 5: Solve for x
    x = 566,911,293,796,603.38/21,002,430.60
  6. Step 6: Final answer
    x = 26,992,651.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.