Home / 8,200,673.20-12,301,009.80-6,287,485.60

Finding the Fourth Proportional to 8,200,673.20, 12,301,009.80 and 6,287,485.60

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Solution

The fourth proportional to 8,200,673.20, 12,301,009.80 and 6,287,485.60 is: 9,431,228.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,200,673.20 : 12,301,009.80 = 6,287,485.60 : x
  2. Step 2: Convert to fraction form
    8,200,673.20/12,301,009.80 = 6,287,485.60/x
  3. Step 3: Cross multiply
    8,200,673.20x = 12,301,009.80 × 6,287,485.60
  4. Step 4: Simplify right side
    8,200,673.20x = 77,342,421,982,958.88
  5. Step 5: Solve for x
    x = 77,342,421,982,958.88/8,200,673.20
  6. Step 6: Final answer
    x = 9,431,228.40

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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.