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Finding the Third Proportional to 78,698,463.88 and 168,452,191.53

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Solution

The third proportional to 78,698,463.88 and 168,452,191.53 is: 360,567,912.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,698,463.88 : 168,452,191.53 = 168,452,191.53 : x
  2. Step 2: Convert to fraction form
    78,698,463.88/168,452,191.53 = 168,452,191.53/x
  3. Step 3: Cross multiply
    78,698,463.88x = 168,452,191.53 × 168,452,191.53
  4. Step 4: Simplify right side
    78,698,463.88x = 28,376,140,830,188,448
  5. Step 5: Solve for x
    x = 28,376,140,830,188,448/78,698,463.88
  6. Step 6: Final answer
    x = 360,567,912.42

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.