Home / 20,215,499.57-30,326,384.54-8,543,920.14

Finding the Fourth Proportional to 20,215,499.57, 30,326,384.54 and 8,543,920.14

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Solution

The fourth proportional to 20,215,499.57, 30,326,384.54 and 8,543,920.14 is: 12,817,205.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,215,499.57 : 30,326,384.54 = 8,543,920.14 : x
  2. Step 2: Convert to fraction form
    20,215,499.57/30,326,384.54 = 8,543,920.14/x
  3. Step 3: Cross multiply
    20,215,499.57x = 30,326,384.54 × 8,543,920.14
  4. Step 4: Simplify right side
    20,215,499.57x = 259,106,207,644,690.66
  5. Step 5: Solve for x
    x = 259,106,207,644,690.66/20,215,499.57
  6. Step 6: Final answer
    x = 12,817,205.27

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1.5x scale

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.