Home / 21,006,278.88-31,496,819.76-9,632,479.20

Finding the Fourth Proportional to 21,006,278.88, 31,496,819.76 and 9,632,479.20

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Solution

The fourth proportional to 21,006,278.88, 31,496,819.76 and 9,632,479.20 is: 14,442,941.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,006,278.88 : 31,496,819.76 = 9,632,479.20 : x
  2. Step 2: Convert to fraction form
    21,006,278.88/31,496,819.76 = 9,632,479.20/x
  3. Step 3: Cross multiply
    21,006,278.88x = 31,496,819.76 × 9,632,479.20
  4. Step 4: Simplify right side
    21,006,278.88x = 303,392,461,204,349
  5. Step 5: Solve for x
    x = 303,392,461,204,349/21,006,278.88
  6. Step 6: Final answer
    x = 14,442,941.70

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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.