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Finding the Third Proportional to 387,895,514 and 861,884,594

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Solution

The third proportional to 387,895,514 and 861,884,594 is: 1,915,064,821.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,895,514 : 861,884,594 = 861,884,594 : x
  2. Step 2: Convert to fraction form
    387,895,514/861,884,594 = 861,884,594/x
  3. Step 3: Cross multiply
    387,895,514x = 861,884,594 × 861,884,594
  4. Step 4: Simplify right side
    387,895,514x = 742,845,053,374,544,896
  5. Step 5: Solve for x
    x = 742,845,053,374,544,896/387,895,514
  6. Step 6: Final answer
    x = 1,915,064,821.75

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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.