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Finding the Third Proportional to 90,874,561 and 195,605,953

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Solution

The third proportional to 90,874,561 and 195,605,953 is: 421,038,499.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,874,561 : 195,605,953 = 195,605,953 : x
  2. Step 2: Convert to fraction form
    90,874,561/195,605,953 = 195,605,953/x
  3. Step 3: Cross multiply
    90,874,561x = 195,605,953 × 195,605,953
  4. Step 4: Simplify right side
    90,874,561x = 38,261,688,849,038,208
  5. Step 5: Solve for x
    x = 38,261,688,849,038,208/90,874,561
  6. Step 6: Final answer
    x = 421,038,499.97

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.