Home / 91,854,010.80-137,781,016.20-84,838,989.60

Finding the Fourth Proportional to 91,854,010.80, 137,781,016.20 and 84,838,989.60

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Solution

The fourth proportional to 91,854,010.80, 137,781,016.20 and 84,838,989.60 is: 127,258,484.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,854,010.80 : 137,781,016.20 = 84,838,989.60 : x
  2. Step 2: Convert to fraction form
    91,854,010.80/137,781,016.20 = 84,838,989.60/x
  3. Step 3: Cross multiply
    91,854,010.80x = 137,781,016.20 × 84,838,989.60
  4. Step 4: Simplify right side
    91,854,010.80x = 11,689,202,200,469,230
  5. Step 5: Solve for x
    x = 11,689,202,200,469,230/91,854,010.80
  6. Step 6: Final answer
    x = 127,258,484.40

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1.5x scale

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.