Home / 7,979,551.20-11,969,326.80-2,930,205.60

Finding the Fourth Proportional to 7,979,551.20, 11,969,326.80 and 2,930,205.60

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Solution

The fourth proportional to 7,979,551.20, 11,969,326.80 and 2,930,205.60 is: 4,395,308.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,979,551.20 : 11,969,326.80 = 2,930,205.60 : x
  2. Step 2: Convert to fraction form
    7,979,551.20/11,969,326.80 = 2,930,205.60/x
  3. Step 3: Cross multiply
    7,979,551.20x = 11,969,326.80 × 2,930,205.60
  4. Step 4: Simplify right side
    7,979,551.20x = 35,072,588,417,590.08
  5. Step 5: Solve for x
    x = 35,072,588,417,590.08/7,979,551.20
  6. Step 6: Final answer
    x = 4,395,308.40

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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.