Home / 8,085,276.80-12,127,915.20-5,380,832.60

Finding the Fourth Proportional to 8,085,276.80, 12,127,915.20 and 5,380,832.60

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Solution

The fourth proportional to 8,085,276.80, 12,127,915.20 and 5,380,832.60 is: 8,071,248.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,085,276.80 : 12,127,915.20 = 5,380,832.60 : x
  2. Step 2: Convert to fraction form
    8,085,276.80/12,127,915.20 = 5,380,832.60/x
  3. Step 3: Cross multiply
    8,085,276.80x = 12,127,915.20 × 5,380,832.60
  4. Step 4: Simplify right side
    8,085,276.80x = 65,258,281,478,195.51
  5. Step 5: Solve for x
    x = 65,258,281,478,195.51/8,085,276.80
  6. Step 6: Final answer
    x = 8,071,248.90

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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.