Home / 7,998,453.60-11,997,680.40-5,128,672.20

Finding the Fourth Proportional to 7,998,453.60, 11,997,680.40 and 5,128,672.20

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Solution

The fourth proportional to 7,998,453.60, 11,997,680.40 and 5,128,672.20 is: 7,693,008.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,998,453.60 : 11,997,680.40 = 5,128,672.20 : x
  2. Step 2: Convert to fraction form
    7,998,453.60/11,997,680.40 = 5,128,672.20/x
  3. Step 3: Cross multiply
    7,998,453.60x = 11,997,680.40 × 5,128,672.20
  4. Step 4: Simplify right side
    7,998,453.60x = 61,532,169,931,964.88
  5. Step 5: Solve for x
    x = 61,532,169,931,964.88/7,998,453.60
  6. Step 6: Final answer
    x = 7,693,008.30

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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.