Home / 69,984,069.60-104,976,104.40-18,871,255.20

Finding the Fourth Proportional to 69,984,069.60, 104,976,104.40 and 18,871,255.20

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Solution

The fourth proportional to 69,984,069.60, 104,976,104.40 and 18,871,255.20 is: 28,306,882.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,984,069.60 : 104,976,104.40 = 18,871,255.20 : x
  2. Step 2: Convert to fraction form
    69,984,069.60/104,976,104.40 = 18,871,255.20/x
  3. Step 3: Cross multiply
    69,984,069.60x = 104,976,104.40 × 18,871,255.20
  4. Step 4: Simplify right side
    69,984,069.60x = 1,981,030,856,034,243
  5. Step 5: Solve for x
    x = 1,981,030,856,034,243/69,984,069.60
  6. Step 6: Final answer
    x = 28,306,882.80

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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.