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Finding the Third Proportional to 128,689,070 and 181,222,567

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Solution

The third proportional to 128,689,070 and 181,222,567 is: 255,201,306.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,689,070 : 181,222,567 = 181,222,567 : x
  2. Step 2: Convert to fraction form
    128,689,070/181,222,567 = 181,222,567/x
  3. Step 3: Cross multiply
    128,689,070x = 181,222,567 × 181,222,567
  4. Step 4: Simplify right side
    128,689,070x = 32,841,618,790,069,488
  5. Step 5: Solve for x
    x = 32,841,618,790,069,488/128,689,070
  6. Step 6: Final answer
    x = 255,201,306.45

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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.