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Finding the Third Proportional to 90,631,377 and 138,547,833

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Solution

The third proportional to 90,631,377 and 138,547,833 is: 211,797,532.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,631,377 : 138,547,833 = 138,547,833 : x
  2. Step 2: Convert to fraction form
    90,631,377/138,547,833 = 138,547,833/x
  3. Step 3: Cross multiply
    90,631,377x = 138,547,833 × 138,547,833
  4. Step 4: Simplify right side
    90,631,377x = 19,195,502,028,995,888
  5. Step 5: Solve for x
    x = 19,195,502,028,995,888/90,631,377
  6. Step 6: Final answer
    x = 211,797,532.65

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.