Home / 71,324,012.80-106,986,019.20-25,879,902.40

Finding the Fourth Proportional to 71,324,012.80, 106,986,019.20 and 25,879,902.40

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Solution

The fourth proportional to 71,324,012.80, 106,986,019.20 and 25,879,902.40 is: 38,819,853.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,324,012.80 : 106,986,019.20 = 25,879,902.40 : x
  2. Step 2: Convert to fraction form
    71,324,012.80/106,986,019.20 = 25,879,902.40/x
  3. Step 3: Cross multiply
    71,324,012.80x = 106,986,019.20 × 25,879,902.40
  4. Step 4: Simplify right side
    71,324,012.80x = 2,768,787,735,060,526
  5. Step 5: Solve for x
    x = 2,768,787,735,060,526/71,324,012.80
  6. Step 6: Final answer
    x = 38,819,853.60

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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.