Home / 257,472,959.98-386,173,077.45-82,573,266.87

Finding the Fourth Proportional to 257,472,959.98, 386,173,077.45 and 82,573,266.87

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Solution

The fourth proportional to 257,472,959.98, 386,173,077.45 and 82,573,266.87 is: 123,848,238.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,472,959.98 : 386,173,077.45 = 82,573,266.87 : x
  2. Step 2: Convert to fraction form
    257,472,959.98/386,173,077.45 = 82,573,266.87/x
  3. Step 3: Cross multiply
    257,472,959.98x = 386,173,077.45 × 82,573,266.87
  4. Step 4: Simplify right side
    257,472,959.98x = 31,887,572,582,288,028
  5. Step 5: Solve for x
    x = 31,887,572,582,288,028/257,472,959.98
  6. Step 6: Final answer
    x = 123,848,238.61

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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.