Home / 912,431,228.23-1,259,179,853.76-516,013,497.76

Finding the Fourth Proportional to 912,431,228.23, 1,259,179,853.76 and 516,013,497.76

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Solution

The fourth proportional to 912,431,228.23, 1,259,179,853.76 and 516,013,497.76 is: 712,112,628.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,431,228.23 : 1,259,179,853.76 = 516,013,497.76 : x
  2. Step 2: Convert to fraction form
    912,431,228.23/1,259,179,853.76 = 516,013,497.76/x
  3. Step 3: Cross multiply
    912,431,228.23x = 1,259,179,853.76 × 516,013,497.76
  4. Step 4: Simplify right side
    912,431,228.23x = 649,753,800,647,622,912
  5. Step 5: Solve for x
    x = 649,753,800,647,622,912/912,431,228.23
  6. Step 6: Final answer
    x = 712,112,628.92

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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.