Home / 8,256,314.40-12,384,471.60-4,477,178.40

Finding the Fourth Proportional to 8,256,314.40, 12,384,471.60 and 4,477,178.40

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Solution

The fourth proportional to 8,256,314.40, 12,384,471.60 and 4,477,178.40 is: 6,715,767.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,256,314.40 : 12,384,471.60 = 4,477,178.40 : x
  2. Step 2: Convert to fraction form
    8,256,314.40/12,384,471.60 = 4,477,178.40/x
  3. Step 3: Cross multiply
    8,256,314.40x = 12,384,471.60 × 4,477,178.40
  4. Step 4: Simplify right side
    8,256,314.40x = 55,447,488,742,933.45
  5. Step 5: Solve for x
    x = 55,447,488,742,933.45/8,256,314.40
  6. Step 6: Final answer
    x = 6,715,767.60

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Double scale
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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.