Home / 25,800,928.40-38,715,389.40-10,656,390.80

Finding the Fourth Proportional to 25,800,928.40, 38,715,389.40 and 10,656,390.80

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Solution

The fourth proportional to 25,800,928.40, 38,715,389.40 and 10,656,390.80 is: 15,990,367.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,800,928.40 : 38,715,389.40 = 10,656,390.80 : x
  2. Step 2: Convert to fraction form
    25,800,928.40/38,715,389.40 = 10,656,390.80/x
  3. Step 3: Cross multiply
    25,800,928.40x = 38,715,389.40 × 10,656,390.80
  4. Step 4: Simplify right side
    25,800,928.40x = 412,566,319,420,577.56
  5. Step 5: Solve for x
    x = 412,566,319,420,577.56/25,800,928.40
  6. Step 6: Final answer
    x = 15,990,367.21

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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.