Home / 20,473,514.47-28,253,451.14-11,306,747.71

Finding the Fourth Proportional to 20,473,514.47, 28,253,451.14 and 11,306,747.71

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Solution

The fourth proportional to 20,473,514.47, 28,253,451.14 and 11,306,747.71 is: 15,603,312.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,473,514.47 : 28,253,451.14 = 11,306,747.71 : x
  2. Step 2: Convert to fraction form
    20,473,514.47/28,253,451.14 = 11,306,747.71/x
  3. Step 3: Cross multiply
    20,473,514.47x = 28,253,451.14 × 11,306,747.71
  4. Step 4: Simplify right side
    20,473,514.47x = 319,454,643,976,791.94
  5. Step 5: Solve for x
    x = 319,454,643,976,791.94/20,473,514.47
  6. Step 6: Final answer
    x = 15,603,312.49

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1.5x scale

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.