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Finding the Third Proportional to 387,895,506 and 861,884,580

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Solution

The third proportional to 387,895,506 and 861,884,580 is: 1,915,064,799.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,895,506 : 861,884,580 = 861,884,580 : x
  2. Step 2: Convert to fraction form
    387,895,506/861,884,580 = 861,884,580/x
  3. Step 3: Cross multiply
    387,895,506x = 861,884,580 × 861,884,580
  4. Step 4: Simplify right side
    387,895,506x = 742,845,029,241,776,384
  5. Step 5: Solve for x
    x = 742,845,029,241,776,384/387,895,506
  6. Step 6: Final answer
    x = 1,915,064,799.03

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.