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Finding the Third Proportional to 55,664,458 and 78,387,695

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Solution

The third proportional to 55,664,458 and 78,387,695 is: 110,386,967.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,664,458 : 78,387,695 = 78,387,695 : x
  2. Step 2: Convert to fraction form
    55,664,458/78,387,695 = 78,387,695/x
  3. Step 3: Cross multiply
    55,664,458x = 78,387,695 × 78,387,695
  4. Step 4: Simplify right side
    55,664,458x = 6,144,630,727,413,025
  5. Step 5: Solve for x
    x = 6,144,630,727,413,025/55,664,458
  6. Step 6: Final answer
    x = 110,386,967.70

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.