Home / 18,887,565.40-28,331,348.10-15,108,429.40

Finding the Fourth Proportional to 18,887,565.40, 28,331,348.10 and 15,108,429.40

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Solution

The fourth proportional to 18,887,565.40, 28,331,348.10 and 15,108,429.40 is: 22,662,644.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,887,565.40 : 28,331,348.10 = 15,108,429.40 : x
  2. Step 2: Convert to fraction form
    18,887,565.40/28,331,348.10 = 15,108,429.40/x
  3. Step 3: Cross multiply
    18,887,565.40x = 28,331,348.10 × 15,108,429.40
  4. Step 4: Simplify right side
    18,887,565.40x = 428,042,172,575,674.19
  5. Step 5: Solve for x
    x = 428,042,172,575,674.19/18,887,565.40
  6. Step 6: Final answer
    x = 22,662,644.10

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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.