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Finding the Third Proportional to 55,367,090 and 121,156,207

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Solution

The third proportional to 55,367,090 and 121,156,207 is: 265,118,258.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,367,090 : 121,156,207 = 121,156,207 : x
  2. Step 2: Convert to fraction form
    55,367,090/121,156,207 = 121,156,207/x
  3. Step 3: Cross multiply
    55,367,090x = 121,156,207 × 121,156,207
  4. Step 4: Simplify right side
    55,367,090x = 14,678,826,494,626,848
  5. Step 5: Solve for x
    x = 14,678,826,494,626,848/55,367,090
  6. Step 6: Final answer
    x = 265,118,258.78

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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.