Home / 15,120,746.40-22,681,119.60-9,074,128.80

Finding the Fourth Proportional to 15,120,746.40, 22,681,119.60 and 9,074,128.80

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Solution

The fourth proportional to 15,120,746.40, 22,681,119.60 and 9,074,128.80 is: 13,611,193.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,120,746.40 : 22,681,119.60 = 9,074,128.80 : x
  2. Step 2: Convert to fraction form
    15,120,746.40/22,681,119.60 = 9,074,128.80/x
  3. Step 3: Cross multiply
    15,120,746.40x = 22,681,119.60 × 9,074,128.80
  4. Step 4: Simplify right side
    15,120,746.40x = 205,811,400,578,604.50
  5. Step 5: Solve for x
    x = 205,811,400,578,604.50/15,120,746.40
  6. Step 6: Final answer
    x = 13,611,193.20

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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.