Home / 148,332,938.70-222,593,886.45-86,921,978.70

Finding the Fourth Proportional to 148,332,938.70, 222,593,886.45 and 86,921,978.70

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Solution

The fourth proportional to 148,332,938.70, 222,593,886.45 and 86,921,978.70 is: 130,438,331.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,332,938.70 : 222,593,886.45 = 86,921,978.70 : x
  2. Step 2: Convert to fraction form
    148,332,938.70/222,593,886.45 = 86,921,978.70/x
  3. Step 3: Cross multiply
    148,332,938.70x = 222,593,886.45 × 86,921,978.70
  4. Step 4: Simplify right side
    148,332,938.70x = 19,348,301,056,757,120
  5. Step 5: Solve for x
    x = 19,348,301,056,757,120/148,332,938.70
  6. Step 6: Final answer
    x = 130,438,331.68

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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.