Home / 847,904,005.80-1,271,856,008.70-664,237,996.20

Finding the Fourth Proportional to 847,904,005.80, 1,271,856,008.70 and 664,237,996.20

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Solution

The fourth proportional to 847,904,005.80, 1,271,856,008.70 and 664,237,996.20 is: 996,356,994.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    847,904,005.80 : 1,271,856,008.70 = 664,237,996.20 : x
  2. Step 2: Convert to fraction form
    847,904,005.80/1,271,856,008.70 = 664,237,996.20/x
  3. Step 3: Cross multiply
    847,904,005.80x = 1,271,856,008.70 × 664,237,996.20
  4. Step 4: Simplify right side
    847,904,005.80x = 844,815,086,673,817,856
  5. Step 5: Solve for x
    x = 844,815,086,673,817,856/847,904,005.80
  6. Step 6: Final answer
    x = 996,356,994.30

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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.