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Finding the Third Proportional to 402,795,440 and 621,986,598

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Solution

The third proportional to 402,795,440 and 621,986,598 is: 960,456,076.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,795,440 : 621,986,598 = 621,986,598 : x
  2. Step 2: Convert to fraction form
    402,795,440/621,986,598 = 621,986,598/x
  3. Step 3: Cross multiply
    402,795,440x = 621,986,598 × 621,986,598
  4. Step 4: Simplify right side
    402,795,440x = 386,867,328,091,613,632
  5. Step 5: Solve for x
    x = 386,867,328,091,613,632/402,795,440
  6. Step 6: Final answer
    x = 960,456,076.89

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.