Home / 207,172,393.60-310,795,915.20-86,016,092.80

Finding the Fourth Proportional to 207,172,393.60, 310,795,915.20 and 86,016,092.80

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Solution

The fourth proportional to 207,172,393.60, 310,795,915.20 and 86,016,092.80 is: 129,039,636.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,172,393.60 : 310,795,915.20 = 86,016,092.80 : x
  2. Step 2: Convert to fraction form
    207,172,393.60/310,795,915.20 = 86,016,092.80/x
  3. Step 3: Cross multiply
    207,172,393.60x = 310,795,915.20 × 86,016,092.80
  4. Step 4: Simplify right side
    207,172,393.60x = 26,733,450,283,704,128
  5. Step 5: Solve for x
    x = 26,733,450,283,704,128/207,172,393.60
  6. Step 6: Final answer
    x = 129,039,636.12

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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.