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Finding the Fourth Proportional to 655,447,998.80, 983,171,998.20 and 267,059,106.20

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Solution

The fourth proportional to 655,447,998.80, 983,171,998.20 and 267,059,106.20 is: 400,588,659.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,447,998.80 : 983,171,998.20 = 267,059,106.20 : x
  2. Step 2: Convert to fraction form
    655,447,998.80/983,171,998.20 = 267,059,106.20/x
  3. Step 3: Cross multiply
    655,447,998.80x = 983,171,998.20 × 267,059,106.20
  4. Step 4: Simplify right side
    655,447,998.80x = 262,565,035,080,160,000
  5. Step 5: Solve for x
    x = 262,565,035,080,160,000/655,447,998.80
  6. Step 6: Final answer
    x = 400,588,659.30

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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.