Home / 7,477,000.40-11,215,500.60-2,428,821.20

Finding the Fourth Proportional to 7,477,000.40, 11,215,500.60 and 2,428,821.20

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Solution

The fourth proportional to 7,477,000.40, 11,215,500.60 and 2,428,821.20 is: 3,643,231.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,477,000.40 : 11,215,500.60 = 2,428,821.20 : x
  2. Step 2: Convert to fraction form
    7,477,000.40/11,215,500.60 = 2,428,821.20/x
  3. Step 3: Cross multiply
    7,477,000.40x = 11,215,500.60 × 2,428,821.20
  4. Step 4: Simplify right side
    7,477,000.40x = 27,240,445,625,892.72
  5. Step 5: Solve for x
    x = 27,240,445,625,892.72/7,477,000.40
  6. Step 6: Final answer
    x = 3,643,231.80

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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.