Home / 739,437,778.92-1,020,456,019.68-409,412,947.08

Finding the Fourth Proportional to 739,437,778.92, 1,020,456,019.68 and 409,412,947.08

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Solution

The fourth proportional to 739,437,778.92, 1,020,456,019.68 and 409,412,947.08 is: 565,007,520.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,437,778.92 : 1,020,456,019.68 = 409,412,947.08 : x
  2. Step 2: Convert to fraction form
    739,437,778.92/1,020,456,019.68 = 409,412,947.08/x
  3. Step 3: Cross multiply
    739,437,778.92x = 1,020,456,019.68 × 409,412,947.08
  4. Step 4: Simplify right side
    739,437,778.92x = 417,787,906,382,715,264
  5. Step 5: Solve for x
    x = 417,787,906,382,715,264/739,437,778.92
  6. Step 6: Final answer
    x = 565,007,520.97

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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.