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Finding the Third Proportional to 18,518,790 and 40,623,324

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Solution

The third proportional to 18,518,790 and 40,623,324 is: 89,112,434.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,518,790 : 40,623,324 = 40,623,324 : x
  2. Step 2: Convert to fraction form
    18,518,790/40,623,324 = 40,623,324/x
  3. Step 3: Cross multiply
    18,518,790x = 40,623,324 × 40,623,324
  4. Step 4: Simplify right side
    18,518,790x = 1,650,254,452,808,976
  5. Step 5: Solve for x
    x = 1,650,254,452,808,976/18,518,790
  6. Step 6: Final answer
    x = 89,112,434.06

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.