Home / 847,904,006.80-1,271,856,010.20-664,237,997.20

Finding the Fourth Proportional to 847,904,006.80, 1,271,856,010.20 and 664,237,997.20

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Solution

The fourth proportional to 847,904,006.80, 1,271,856,010.20 and 664,237,997.20 is: 996,356,995.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    847,904,006.80 : 1,271,856,010.20 = 664,237,997.20 : x
  2. Step 2: Convert to fraction form
    847,904,006.80/1,271,856,010.20 = 664,237,997.20/x
  3. Step 3: Cross multiply
    847,904,006.80x = 1,271,856,010.20 × 664,237,997.20
  4. Step 4: Simplify right side
    847,904,006.80x = 844,815,088,942,030,848
  5. Step 5: Solve for x
    x = 844,815,088,942,030,848/847,904,006.80
  6. Step 6: Final answer
    x = 996,356,995.80

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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.