Home / 891,648,005.60-1,337,472,008.40-542,455,839.20

Finding the Fourth Proportional to 891,648,005.60, 1,337,472,008.40 and 542,455,839.20

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Solution

The fourth proportional to 891,648,005.60, 1,337,472,008.40 and 542,455,839.20 is: 813,683,758.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,648,005.60 : 1,337,472,008.40 = 542,455,839.20 : x
  2. Step 2: Convert to fraction form
    891,648,005.60/1,337,472,008.40 = 542,455,839.20/x
  3. Step 3: Cross multiply
    891,648,005.60x = 1,337,472,008.40 × 542,455,839.20
  4. Step 4: Simplify right side
    891,648,005.60x = 725,519,500,723,131,520
  5. Step 5: Solve for x
    x = 725,519,500,723,131,520/891,648,005.60
  6. Step 6: Final answer
    x = 813,683,758.80

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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.