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Finding the Third Proportional to 86,804,742 and 187,238,520

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Solution

The third proportional to 86,804,742 and 187,238,520 is: 403,874,979.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,804,742 : 187,238,520 = 187,238,520 : x
  2. Step 2: Convert to fraction form
    86,804,742/187,238,520 = 187,238,520/x
  3. Step 3: Cross multiply
    86,804,742x = 187,238,520 × 187,238,520
  4. Step 4: Simplify right side
    86,804,742x = 35,058,263,371,790,400
  5. Step 5: Solve for x
    x = 35,058,263,371,790,400/86,804,742
  6. Step 6: Final answer
    x = 403,874,979.22

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.