Home / 91,843,555.56-137,765,522.88-86,231,538.60

Finding the Fourth Proportional to 91,843,555.56, 137,765,522.88 and 86,231,538.60

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Solution

The fourth proportional to 91,843,555.56, 137,765,522.88 and 86,231,538.60 is: 129,347,485.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,843,555.56 : 137,765,522.88 = 86,231,538.60 : x
  2. Step 2: Convert to fraction form
    91,843,555.56/137,765,522.88 = 86,231,538.60/x
  3. Step 3: Cross multiply
    91,843,555.56x = 137,765,522.88 × 86,231,538.60
  4. Step 4: Simplify right side
    91,843,555.56x = 11,879,733,003,975,902
  5. Step 5: Solve for x
    x = 11,879,733,003,975,902/91,843,555.56
  6. Step 6: Final answer
    x = 129,347,485.86

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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.