Home / 91,856,141.80-137,784,212.70-61,245,140.20

Finding the Fourth Proportional to 91,856,141.80, 137,784,212.70 and 61,245,140.20

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Solution

The fourth proportional to 91,856,141.80, 137,784,212.70 and 61,245,140.20 is: 91,867,710.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,856,141.80 : 137,784,212.70 = 61,245,140.20 : x
  2. Step 2: Convert to fraction form
    91,856,141.80/137,784,212.70 = 61,245,140.20/x
  3. Step 3: Cross multiply
    91,856,141.80x = 137,784,212.70 × 61,245,140.20
  4. Step 4: Simplify right side
    91,856,141.80x = 8,438,613,424,158,120
  5. Step 5: Solve for x
    x = 8,438,613,424,158,120/91,856,141.80
  6. Step 6: Final answer
    x = 91,867,710.30

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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.