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Finding the Third Proportional to 72,289,712 and 110,128,828

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Solution

The third proportional to 72,289,712 and 110,128,828 is: 167,774,340.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,289,712 : 110,128,828 = 110,128,828 : x
  2. Step 2: Convert to fraction form
    72,289,712/110,128,828 = 110,128,828/x
  3. Step 3: Cross multiply
    72,289,712x = 110,128,828 × 110,128,828
  4. Step 4: Simplify right side
    72,289,712x = 12,128,358,756,653,584
  5. Step 5: Solve for x
    x = 12,128,358,756,653,584/72,289,712
  6. Step 6: Final answer
    x = 167,774,340.51

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.