Home / 20,722,555.18-28,596,625.17-11,429,925.68

Finding the Fourth Proportional to 20,722,555.18, 28,596,625.17 and 11,429,925.68

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Solution

The fourth proportional to 20,722,555.18, 28,596,625.17 and 11,429,925.68 is: 15,773,021.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,722,555.18 : 28,596,625.17 = 11,429,925.68 : x
  2. Step 2: Convert to fraction form
    20,722,555.18/28,596,625.17 = 11,429,925.68/x
  3. Step 3: Cross multiply
    20,722,555.18x = 28,596,625.17 × 11,429,925.68
  4. Step 4: Simplify right side
    20,722,555.18x = 326,857,300,248,934.31
  5. Step 5: Solve for x
    x = 326,857,300,248,934.31/20,722,555.18
  6. Step 6: Final answer
    x = 15,773,021.11

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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.