Home / 187,819,608.40-281,729,412.60-115,260,197.20

Finding the Fourth Proportional to 187,819,608.40, 281,729,412.60 and 115,260,197.20

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Solution

The fourth proportional to 187,819,608.40, 281,729,412.60 and 115,260,197.20 is: 172,890,295.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,819,608.40 : 281,729,412.60 = 115,260,197.20 : x
  2. Step 2: Convert to fraction form
    187,819,608.40/281,729,412.60 = 115,260,197.20/x
  3. Step 3: Cross multiply
    187,819,608.40x = 281,729,412.60 × 115,260,197.20
  4. Step 4: Simplify right side
    187,819,608.40x = 32,472,187,653,316,168
  5. Step 5: Solve for x
    x = 32,472,187,653,316,168/187,819,608.40
  6. Step 6: Final answer
    x = 172,890,295.80

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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.