Home / 257,096,511.80-385,644,767.70-220,108,218.20

Finding the Fourth Proportional to 257,096,511.80, 385,644,767.70 and 220,108,218.20

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Solution

The fourth proportional to 257,096,511.80, 385,644,767.70 and 220,108,218.20 is: 330,162,327.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,096,511.80 : 385,644,767.70 = 220,108,218.20 : x
  2. Step 2: Convert to fraction form
    257,096,511.80/385,644,767.70 = 220,108,218.20/x
  3. Step 3: Cross multiply
    257,096,511.80x = 385,644,767.70 × 220,108,218.20
  4. Step 4: Simplify right side
    257,096,511.80x = 84,883,582,676,599,904
  5. Step 5: Solve for x
    x = 84,883,582,676,599,904/257,096,511.80
  6. Step 6: Final answer
    x = 330,162,327.30

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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.