Home / 578,799,008.40-868,198,512.60-395,132,998.80

Finding the Fourth Proportional to 578,799,008.40, 868,198,512.60 and 395,132,998.80

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Solution

The fourth proportional to 578,799,008.40, 868,198,512.60 and 395,132,998.80 is: 592,699,498.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,799,008.40 : 868,198,512.60 = 395,132,998.80 : x
  2. Step 2: Convert to fraction form
    578,799,008.40/868,198,512.60 = 395,132,998.80/x
  3. Step 3: Cross multiply
    578,799,008.40x = 868,198,512.60 × 395,132,998.80
  4. Step 4: Simplify right side
    578,799,008.40x = 343,053,881,837,337,600
  5. Step 5: Solve for x
    x = 343,053,881,837,337,600/578,799,008.40
  6. Step 6: Final answer
    x = 592,699,498.20

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Similar ratio
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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.