Home / 647,514,449.80-971,059,098.30-238,517,456.20

Finding the Fourth Proportional to 647,514,449.80, 971,059,098.30 and 238,517,456.20

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Solution

The fourth proportional to 647,514,449.80, 971,059,098.30 and 238,517,456.20 is: 357,697,879.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,514,449.80 : 971,059,098.30 = 238,517,456.20 : x
  2. Step 2: Convert to fraction form
    647,514,449.80/971,059,098.30 = 238,517,456.20/x
  3. Step 3: Cross multiply
    647,514,449.80x = 971,059,098.30 × 238,517,456.20
  4. Step 4: Simplify right side
    647,514,449.80x = 231,614,545,946,381,728
  5. Step 5: Solve for x
    x = 231,614,545,946,381,728/647,514,449.80
  6. Step 6: Final answer
    x = 357,697,879.97

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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.