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Finding the Third Proportional to 72,939,868 and 115,498,434

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Solution

The third proportional to 72,939,868 and 115,498,434 is: 182,888,845.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,939,868 : 115,498,434 = 115,498,434 : x
  2. Step 2: Convert to fraction form
    72,939,868/115,498,434 = 115,498,434/x
  3. Step 3: Cross multiply
    72,939,868x = 115,498,434 × 115,498,434
  4. Step 4: Simplify right side
    72,939,868x = 13,339,888,256,452,356
  5. Step 5: Solve for x
    x = 13,339,888,256,452,356/72,939,868
  6. Step 6: Final answer
    x = 182,888,845.60

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Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.