Home / 1,000,731,124.38-1,381,006,560.78-548,608,284.12

Finding the Fourth Proportional to 1,000,731,124.38, 1,381,006,560.78 and 548,608,284.12

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Solution

The fourth proportional to 1,000,731,124.38, 1,381,006,560.78 and 548,608,284.12 is: 757,078,121.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,000,731,124.38 : 1,381,006,560.78 = 548,608,284.12 : x
  2. Step 2: Convert to fraction form
    1,000,731,124.38/1,381,006,560.78 = 548,608,284.12/x
  3. Step 3: Cross multiply
    1,000,731,124.38x = 1,381,006,560.78 × 548,608,284.12
  4. Step 4: Simplify right side
    1,000,731,124.38x = 757,631,639,667,978,240
  5. Step 5: Solve for x
    x = 757,631,639,667,978,240/1,000,731,124.38
  6. Step 6: Final answer
    x = 757,078,121.40

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Double scale
Find fourth proportional to 1,000,731,125.38, 1,381,006,562.16 and 548,608,285.12
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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.