Home / 8,477,260.40-12,715,890.60-3,428,570.90

Finding the Fourth Proportional to 8,477,260.40, 12,715,890.60 and 3,428,570.90

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Solution

The fourth proportional to 8,477,260.40, 12,715,890.60 and 3,428,570.90 is: 5,142,856.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,477,260.40 : 12,715,890.60 = 3,428,570.90 : x
  2. Step 2: Convert to fraction form
    8,477,260.40/12,715,890.60 = 3,428,570.90/x
  3. Step 3: Cross multiply
    8,477,260.40x = 12,715,890.60 × 3,428,570.90
  4. Step 4: Simplify right side
    8,477,260.40x = 43,597,332,478,743.54
  5. Step 5: Solve for x
    x = 43,597,332,478,743.54/8,477,260.40
  6. Step 6: Final answer
    x = 5,142,856.35

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Similar ratio
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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.