Home / 725,615,998.80-1,088,423,998.20-403,129,726.80

Finding the Fourth Proportional to 725,615,998.80, 1,088,423,998.20 and 403,129,726.80

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Solution

The fourth proportional to 725,615,998.80, 1,088,423,998.20 and 403,129,726.80 is: 604,694,590.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,615,998.80 : 1,088,423,998.20 = 403,129,726.80 : x
  2. Step 2: Convert to fraction form
    725,615,998.80/1,088,423,998.20 = 403,129,726.80/x
  3. Step 3: Cross multiply
    725,615,998.80x = 1,088,423,998.20 × 403,129,726.80
  4. Step 4: Simplify right side
    725,615,998.80x = 438,776,069,036,929,728
  5. Step 5: Solve for x
    x = 438,776,069,036,929,728/725,615,998.80
  6. Step 6: Final answer
    x = 604,694,590.20

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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.