Home / 321,489,008.15-482,233,512.23-319,221,526.55

Finding the Fourth Proportional to 321,489,008.15, 482,233,512.23 and 319,221,526.55

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Solution

The fourth proportional to 321,489,008.15, 482,233,512.23 and 319,221,526.55 is: 478,832,289.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,489,008.15 : 482,233,512.23 = 319,221,526.55 : x
  2. Step 2: Convert to fraction form
    321,489,008.15/482,233,512.23 = 319,221,526.55/x
  3. Step 3: Cross multiply
    321,489,008.15x = 482,233,512.23 × 319,221,526.55
  4. Step 4: Simplify right side
    321,489,008.15x = 153,939,317,926,032,608
  5. Step 5: Solve for x
    x = 153,939,317,926,032,608/321,489,008.15
  6. Step 6: Final answer
    x = 478,832,289.83

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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.