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Finding the Third Proportional to 156,931,559 and 215,424,187

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Solution

The third proportional to 156,931,559 and 215,424,187 is: 295,718,596.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,931,559 : 215,424,187 = 215,424,187 : x
  2. Step 2: Convert to fraction form
    156,931,559/215,424,187 = 215,424,187/x
  3. Step 3: Cross multiply
    156,931,559x = 215,424,187 × 215,424,187
  4. Step 4: Simplify right side
    156,931,559x = 46,407,580,344,610,968
  5. Step 5: Solve for x
    x = 46,407,580,344,610,968/156,931,559
  6. Step 6: Final answer
    x = 295,718,596.31

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.