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Finding the Third Proportional to 55,897,790 and 121,637,080

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Solution

The third proportional to 55,897,790 and 121,637,080 is: 264,689,878.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,897,790 : 121,637,080 = 121,637,080 : x
  2. Step 2: Convert to fraction form
    55,897,790/121,637,080 = 121,637,080/x
  3. Step 3: Cross multiply
    55,897,790x = 121,637,080 × 121,637,080
  4. Step 4: Simplify right side
    55,897,790x = 14,795,579,230,926,400
  5. Step 5: Solve for x
    x = 14,795,579,230,926,400/55,897,790
  6. Step 6: Final answer
    x = 264,689,878.27

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.