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Finding the Third Proportional to 72,812,142.75 and 156,429,969

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Solution

The third proportional to 72,812,142.75 and 156,429,969 is: 336,074,922.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,812,142.75 : 156,429,969 = 156,429,969 : x
  2. Step 2: Convert to fraction form
    72,812,142.75/156,429,969 = 156,429,969/x
  3. Step 3: Cross multiply
    72,812,142.75x = 156,429,969 × 156,429,969
  4. Step 4: Simplify right side
    72,812,142.75x = 24,470,335,201,340,960
  5. Step 5: Solve for x
    x = 24,470,335,201,340,960/72,812,142.75
  6. Step 6: Final answer
    x = 336,074,922.08

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.