Home / 12,402,401.20-18,603,601.80-9,043,169.20

Finding the Fourth Proportional to 12,402,401.20, 18,603,601.80 and 9,043,169.20

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Solution

The fourth proportional to 12,402,401.20, 18,603,601.80 and 9,043,169.20 is: 13,564,753.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,402,401.20 : 18,603,601.80 = 9,043,169.20 : x
  2. Step 2: Convert to fraction form
    12,402,401.20/18,603,601.80 = 9,043,169.20/x
  3. Step 3: Cross multiply
    12,402,401.20x = 18,603,601.80 × 9,043,169.20
  4. Step 4: Simplify right side
    12,402,401.20x = 168,235,518,806,824.56
  5. Step 5: Solve for x
    x = 168,235,518,806,824.56/12,402,401.20
  6. Step 6: Final answer
    x = 13,564,753.80

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Similar ratio
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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.