Home / 69,984,000.10-104,976,000.15-18,871,185.70

Finding the Fourth Proportional to 69,984,000.10, 104,976,000.15 and 18,871,185.70

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Solution

The fourth proportional to 69,984,000.10, 104,976,000.15 and 18,871,185.70 is: 28,306,778.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,984,000.10 : 104,976,000.15 = 18,871,185.70 : x
  2. Step 2: Convert to fraction form
    69,984,000.10/104,976,000.15 = 18,871,185.70/x
  3. Step 3: Cross multiply
    69,984,000.10x = 104,976,000.15 × 18,871,185.70
  4. Step 4: Simplify right side
    69,984,000.10x = 1,981,021,592,873,878
  5. Step 5: Solve for x
    x = 1,981,021,592,873,878/69,984,000.10
  6. Step 6: Final answer
    x = 28,306,778.55

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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.