Home / 51,887,511.85-71,605,617.52-30,981,371.20

Finding the Fourth Proportional to 51,887,511.85, 71,605,617.52 and 30,981,371.20

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Solution

The fourth proportional to 51,887,511.85, 71,605,617.52 and 30,981,371.20 is: 42,754,800.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,887,511.85 : 71,605,617.52 = 30,981,371.20 : x
  2. Step 2: Convert to fraction form
    51,887,511.85/71,605,617.52 = 30,981,371.20/x
  3. Step 3: Cross multiply
    51,887,511.85x = 71,605,617.52 × 30,981,371.20
  4. Step 4: Simplify right side
    51,887,511.85x = 2,218,440,216,392,343.25
  5. Step 5: Solve for x
    x = 2,218,440,216,392,343.25/51,887,511.85
  6. Step 6: Final answer
    x = 42,754,800.48

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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.