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Finding the Third Proportional to 130,638,258 and 215,109,675

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Solution

The third proportional to 130,638,258 and 215,109,675 is: 354,200,775.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,638,258 : 215,109,675 = 215,109,675 : x
  2. Step 2: Convert to fraction form
    130,638,258/215,109,675 = 215,109,675/x
  3. Step 3: Cross multiply
    130,638,258x = 215,109,675 × 215,109,675
  4. Step 4: Simplify right side
    130,638,258x = 46,272,172,278,605,624
  5. Step 5: Solve for x
    x = 46,272,172,278,605,624/130,638,258
  6. Step 6: Final answer
    x = 354,200,775.39

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Why These Related Problems?

These problems maintain the same ratio (1.65) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.