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Finding the Third Proportional to 72,031,762 and 157,724,659

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Solution

The third proportional to 72,031,762 and 157,724,659 is: 345,362,481.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,031,762 : 157,724,659 = 157,724,659 : x
  2. Step 2: Convert to fraction form
    72,031,762/157,724,659 = 157,724,659/x
  3. Step 3: Cross multiply
    72,031,762x = 157,724,659 × 157,724,659
  4. Step 4: Simplify right side
    72,031,762x = 24,877,068,056,666,280
  5. Step 5: Solve for x
    x = 24,877,068,056,666,280/72,031,762
  6. Step 6: Final answer
    x = 345,362,481.30

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.