Home / 912,431,273.28-1,259,179,915.88-516,013,542.80

Finding the Fourth Proportional to 912,431,273.28, 1,259,179,915.88 and 516,013,542.80

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Solution

The fourth proportional to 912,431,273.28, 1,259,179,915.88 and 516,013,542.80 is: 712,112,691.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,431,273.28 : 1,259,179,915.88 = 516,013,542.80 : x
  2. Step 2: Convert to fraction form
    912,431,273.28/1,259,179,915.88 = 516,013,542.80/x
  3. Step 3: Cross multiply
    912,431,273.28x = 1,259,179,915.88 × 516,013,542.80
  4. Step 4: Simplify right side
    912,431,273.28x = 649,753,889,415,844,864
  5. Step 5: Solve for x
    x = 649,753,889,415,844,864/912,431,273.28
  6. Step 6: Final answer
    x = 712,112,691.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.