Home / 3,138,709.60-4,708,064.40-2,430,121.60

Finding the Fourth Proportional to 3,138,709.60, 4,708,064.40 and 2,430,121.60

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Solution

The fourth proportional to 3,138,709.60, 4,708,064.40 and 2,430,121.60 is: 3,645,182.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,138,709.60 : 4,708,064.40 = 2,430,121.60 : x
  2. Step 2: Convert to fraction form
    3,138,709.60/4,708,064.40 = 2,430,121.60/x
  3. Step 3: Cross multiply
    3,138,709.60x = 4,708,064.40 × 2,430,121.60
  4. Step 4: Simplify right side
    3,138,709.60x = 11,441,168,992,631.04
  5. Step 5: Solve for x
    x = 11,441,168,992,631.04/3,138,709.60
  6. Step 6: Final answer
    x = 3,645,182.40

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Double scale
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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.