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Finding the Third Proportional to 72,155,816 and 157,542,606

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Solution

The third proportional to 72,155,816 and 157,542,606 is: 343,973,280.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,155,816 : 157,542,606 = 157,542,606 : x
  2. Step 2: Convert to fraction form
    72,155,816/157,542,606 = 157,542,606/x
  3. Step 3: Cross multiply
    72,155,816x = 157,542,606 × 157,542,606
  4. Step 4: Simplify right side
    72,155,816x = 24,819,672,705,271,236
  5. Step 5: Solve for x
    x = 24,819,672,705,271,236/72,155,816
  6. Step 6: Final answer
    x = 343,973,280.06

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.