Home / 485,514,000.20-728,271,000.30-212,884,767.20

Finding the Fourth Proportional to 485,514,000.20, 728,271,000.30 and 212,884,767.20

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Solution

The fourth proportional to 485,514,000.20, 728,271,000.30 and 212,884,767.20 is: 319,327,150.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,514,000.20 : 728,271,000.30 = 212,884,767.20 : x
  2. Step 2: Convert to fraction form
    485,514,000.20/728,271,000.30 = 212,884,767.20/x
  3. Step 3: Cross multiply
    485,514,000.20x = 728,271,000.30 × 212,884,767.20
  4. Step 4: Simplify right side
    485,514,000.20x = 155,037,802,357,376,608
  5. Step 5: Solve for x
    x = 155,037,802,357,376,608/485,514,000.20
  6. Step 6: Final answer
    x = 319,327,150.80

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.