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Finding the Third Proportional to 138,710,904 and 216,008,570

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Solution

The third proportional to 138,710,904 and 216,008,570 is: 336,380,925.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,710,904 : 216,008,570 = 216,008,570 : x
  2. Step 2: Convert to fraction form
    138,710,904/216,008,570 = 216,008,570/x
  3. Step 3: Cross multiply
    138,710,904x = 216,008,570 × 216,008,570
  4. Step 4: Simplify right side
    138,710,904x = 46,659,702,313,444,896
  5. Step 5: Solve for x
    x = 46,659,702,313,444,896/138,710,904
  6. Step 6: Final answer
    x = 336,380,925.85

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.