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Finding the Third Proportional to 72,855,187 and 118,953,370

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Solution

The third proportional to 72,855,187 and 118,953,370 is: 194,219,585.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,855,187 : 118,953,370 = 118,953,370 : x
  2. Step 2: Convert to fraction form
    72,855,187/118,953,370 = 118,953,370/x
  3. Step 3: Cross multiply
    72,855,187x = 118,953,370 × 118,953,370
  4. Step 4: Simplify right side
    72,855,187x = 14,149,904,234,356,900
  5. Step 5: Solve for x
    x = 14,149,904,234,356,900/72,855,187
  6. Step 6: Final answer
    x = 194,219,585.69

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Why These Related Problems?

These problems maintain the same ratio (1.63) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.