Home / 20,514,191.95-28,310,259.96-11,221,549.57

Finding the Fourth Proportional to 20,514,191.95, 28,310,259.96 and 11,221,549.57

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Solution

The fourth proportional to 20,514,191.95, 28,310,259.96 and 11,221,549.57 is: 15,486,107.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,514,191.95 : 28,310,259.96 = 11,221,549.57 : x
  2. Step 2: Convert to fraction form
    20,514,191.95/28,310,259.96 = 11,221,549.57/x
  3. Step 3: Cross multiply
    20,514,191.95x = 28,310,259.96 × 11,221,549.57
  4. Step 4: Simplify right side
    20,514,191.95x = 317,684,985,480,726.25
  5. Step 5: Solve for x
    x = 317,684,985,480,726.25/20,514,191.95
  6. Step 6: Final answer
    x = 15,486,107.68

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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.