Home / 847,904,008.30-1,271,856,012.45-664,237,998.70

Finding the Fourth Proportional to 847,904,008.30, 1,271,856,012.45 and 664,237,998.70

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Solution

The fourth proportional to 847,904,008.30, 1,271,856,012.45 and 664,237,998.70 is: 996,356,998.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    847,904,008.30 : 1,271,856,012.45 = 664,237,998.70 : x
  2. Step 2: Convert to fraction form
    847,904,008.30/1,271,856,012.45 = 664,237,998.70/x
  3. Step 3: Cross multiply
    847,904,008.30x = 1,271,856,012.45 × 664,237,998.70
  4. Step 4: Simplify right side
    847,904,008.30x = 844,815,092,344,350,336
  5. Step 5: Solve for x
    x = 844,815,092,344,350,336/847,904,008.30
  6. Step 6: Final answer
    x = 996,356,998.05

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1.5x scale

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.