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Finding the Third Proportional to 142,340,760 and 310,785,552

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Solution

The third proportional to 142,340,760 and 310,785,552 is: 678,566,415.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,340,760 : 310,785,552 = 310,785,552 : x
  2. Step 2: Convert to fraction form
    142,340,760/310,785,552 = 310,785,552/x
  3. Step 3: Cross multiply
    142,340,760x = 310,785,552 × 310,785,552
  4. Step 4: Simplify right side
    142,340,760x = 96,587,659,331,944,704
  5. Step 5: Solve for x
    x = 96,587,659,331,944,704/142,340,760
  6. Step 6: Final answer
    x = 678,566,415.78

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.