Home / 784,405,487.20-1,176,608,230.80-267,419,682.40

Finding the Fourth Proportional to 784,405,487.20, 1,176,608,230.80 and 267,419,682.40

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Solution

The fourth proportional to 784,405,487.20, 1,176,608,230.80 and 267,419,682.40 is: 401,129,523.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,405,487.20 : 1,176,608,230.80 = 267,419,682.40 : x
  2. Step 2: Convert to fraction form
    784,405,487.20/1,176,608,230.80 = 267,419,682.40/x
  3. Step 3: Cross multiply
    784,405,487.20x = 1,176,608,230.80 × 267,419,682.40
  4. Step 4: Simplify right side
    784,405,487.20x = 314,648,199,389,761,920
  5. Step 5: Solve for x
    x = 314,648,199,389,761,920/784,405,487.20
  6. Step 6: Final answer
    x = 401,129,523.60

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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.