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Finding the Fourth Proportional to 426,494,264.52, 639,765,327.48 and 119,762,462.28

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Solution

The fourth proportional to 426,494,264.52, 639,765,327.48 and 119,762,462.28 is: 179,650,413.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,494,264.52 : 639,765,327.48 = 119,762,462.28 : x
  2. Step 2: Convert to fraction form
    426,494,264.52/639,765,327.48 = 119,762,462.28/x
  3. Step 3: Cross multiply
    426,494,264.52x = 639,765,327.48 × 119,762,462.28
  4. Step 4: Simplify right side
    426,494,264.52x = 76,619,870,900,375,344
  5. Step 5: Solve for x
    x = 76,619,870,900,375,344/426,494,264.52
  6. Step 6: Final answer
    x = 179,650,413.32

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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.