Home / 91,854,013.80-137,781,020.70-84,838,992.60

Finding the Fourth Proportional to 91,854,013.80, 137,781,020.70 and 84,838,992.60

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Solution

The fourth proportional to 91,854,013.80, 137,781,020.70 and 84,838,992.60 is: 127,258,488.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,854,013.80 : 137,781,020.70 = 84,838,992.60 : x
  2. Step 2: Convert to fraction form
    91,854,013.80/137,781,020.70 = 84,838,992.60/x
  3. Step 3: Cross multiply
    91,854,013.80x = 137,781,020.70 × 84,838,992.60
  4. Step 4: Simplify right side
    91,854,013.80x = 11,689,202,995,587,744
  5. Step 5: Solve for x
    x = 11,689,202,995,587,744/91,854,013.80
  6. Step 6: Final answer
    x = 127,258,488.90

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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.