Home / 67,415,846.10-101,123,769.15-66,743,999.70

Finding the Fourth Proportional to 67,415,846.10, 101,123,769.15 and 66,743,999.70

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Solution

The fourth proportional to 67,415,846.10, 101,123,769.15 and 66,743,999.70 is: 100,115,999.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,415,846.10 : 101,123,769.15 = 66,743,999.70 : x
  2. Step 2: Convert to fraction form
    67,415,846.10/101,123,769.15 = 66,743,999.70/x
  3. Step 3: Cross multiply
    67,415,846.10x = 101,123,769.15 × 66,743,999.70
  4. Step 4: Simplify right side
    67,415,846.10x = 6,749,404,817,810,470
  5. Step 5: Solve for x
    x = 6,749,404,817,810,470/67,415,846.10
  6. Step 6: Final answer
    x = 100,115,999.55

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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.