Home / 891,648,335.20-1,337,472,502.80-309,188,999.20

Finding the Fourth Proportional to 891,648,335.20, 1,337,472,502.80 and 309,188,999.20

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Solution

The fourth proportional to 891,648,335.20, 1,337,472,502.80 and 309,188,999.20 is: 463,783,498.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,648,335.20 : 1,337,472,502.80 = 309,188,999.20 : x
  2. Step 2: Convert to fraction form
    891,648,335.20/1,337,472,502.80 = 309,188,999.20/x
  3. Step 3: Cross multiply
    891,648,335.20x = 1,337,472,502.80 × 309,188,999.20
  4. Step 4: Simplify right side
    891,648,335.20x = 413,531,784,598,251,136
  5. Step 5: Solve for x
    x = 413,531,784,598,251,136/891,648,335.20
  6. Step 6: Final answer
    x = 463,783,498.80

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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.