Home / 85,019,693.80-127,529,540.70-41,972,972.80

Finding the Fourth Proportional to 85,019,693.80, 127,529,540.70 and 41,972,972.80

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Solution

The fourth proportional to 85,019,693.80, 127,529,540.70 and 41,972,972.80 is: 62,959,459.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,019,693.80 : 127,529,540.70 = 41,972,972.80 : x
  2. Step 2: Convert to fraction form
    85,019,693.80/127,529,540.70 = 41,972,972.80/x
  3. Step 3: Cross multiply
    85,019,693.80x = 127,529,540.70 × 41,972,972.80
  4. Step 4: Simplify right side
    85,019,693.80x = 5,352,793,942,997,593
  5. Step 5: Solve for x
    x = 5,352,793,942,997,593/85,019,693.80
  6. Step 6: Final answer
    x = 62,959,459.20

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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.