Home / 729,918,388.13-1,007,266,565.55-428,498,852.90

Finding the Fourth Proportional to 729,918,388.13, 1,007,266,565.55 and 428,498,852.90

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Solution

The fourth proportional to 729,918,388.13, 1,007,266,565.55 and 428,498,852.90 is: 591,316,200.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,918,388.13 : 1,007,266,565.55 = 428,498,852.90 : x
  2. Step 2: Convert to fraction form
    729,918,388.13/1,007,266,565.55 = 428,498,852.90/x
  3. Step 3: Cross multiply
    729,918,388.13x = 1,007,266,565.55 × 428,498,852.90
  4. Step 4: Simplify right side
    729,918,388.13x = 431,612,567,896,847,168
  5. Step 5: Solve for x
    x = 431,612,567,896,847,168/729,918,388.13
  6. Step 6: Final answer
    x = 591,316,200.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.