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Finding the Third Proportional to 156,333,146 and 208,420,470

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Solution

The third proportional to 156,333,146 and 208,420,470 is: 277,862,330.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,333,146 : 208,420,470 = 208,420,470 : x
  2. Step 2: Convert to fraction form
    156,333,146/208,420,470 = 208,420,470/x
  3. Step 3: Cross multiply
    156,333,146x = 208,420,470 × 208,420,470
  4. Step 4: Simplify right side
    156,333,146x = 43,439,092,315,020,896
  5. Step 5: Solve for x
    x = 43,439,092,315,020,896/156,333,146
  6. Step 6: Final answer
    x = 277,862,330.71

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.