Home / 20,218,992.10-30,328,488.15-14,479,429.30

Finding the Fourth Proportional to 20,218,992.10, 30,328,488.15 and 14,479,429.30

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Solution

The fourth proportional to 20,218,992.10, 30,328,488.15 and 14,479,429.30 is: 21,719,143.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,218,992.10 : 30,328,488.15 = 14,479,429.30 : x
  2. Step 2: Convert to fraction form
    20,218,992.10/30,328,488.15 = 14,479,429.30/x
  3. Step 3: Cross multiply
    20,218,992.10x = 30,328,488.15 × 14,479,429.30
  4. Step 4: Simplify right side
    20,218,992.10x = 439,139,199,943,812.81
  5. Step 5: Solve for x
    x = 439,139,199,943,812.81/20,218,992.10
  6. Step 6: Final answer
    x = 21,719,143.95

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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.