Home / 148,331,081.70-222,591,100.95-86,920,121.70

Finding the Fourth Proportional to 148,331,081.70, 222,591,100.95 and 86,920,121.70

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Solution

The fourth proportional to 148,331,081.70, 222,591,100.95 and 86,920,121.70 is: 130,435,545.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,331,081.70 : 222,591,100.95 = 86,920,121.70 : x
  2. Step 2: Convert to fraction form
    148,331,081.70/222,591,100.95 = 86,920,121.70/x
  3. Step 3: Cross multiply
    148,331,081.70x = 222,591,100.95 × 86,920,121.70
  4. Step 4: Simplify right side
    148,331,081.70x = 19,347,645,583,910,984
  5. Step 5: Solve for x
    x = 19,347,645,583,910,984/148,331,081.70
  6. Step 6: Final answer
    x = 130,435,545.69

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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.