Home / 84,743,999.70-127,115,999.55-65,612,123.70

Finding the Fourth Proportional to 84,743,999.70, 127,115,999.55 and 65,612,123.70

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Solution

The fourth proportional to 84,743,999.70, 127,115,999.55 and 65,612,123.70 is: 98,418,185.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,743,999.70 : 127,115,999.55 = 65,612,123.70 : x
  2. Step 2: Convert to fraction form
    84,743,999.70/127,115,999.55 = 65,612,123.70/x
  3. Step 3: Cross multiply
    84,743,999.70x = 127,115,999.55 × 65,612,123.70
  4. Step 4: Simplify right side
    84,743,999.70x = 8,340,350,686,723,745
  5. Step 5: Solve for x
    x = 8,340,350,686,723,745/84,743,999.70
  6. Step 6: Final answer
    x = 98,418,185.55

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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.