Home / 12,069,031.20-18,103,546.80-7,274,252.40

Finding the Fourth Proportional to 12,069,031.20, 18,103,546.80 and 7,274,252.40

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Solution

The fourth proportional to 12,069,031.20, 18,103,546.80 and 7,274,252.40 is: 10,911,378.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,069,031.20 : 18,103,546.80 = 7,274,252.40 : x
  2. Step 2: Convert to fraction form
    12,069,031.20/18,103,546.80 = 7,274,252.40/x
  3. Step 3: Cross multiply
    12,069,031.20x = 18,103,546.80 × 7,274,252.40
  4. Step 4: Simplify right side
    12,069,031.20x = 131,689,768,758,412.33
  5. Step 5: Solve for x
    x = 131,689,768,758,412.33/12,069,031.20
  6. Step 6: Final answer
    x = 10,911,378.60

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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.