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Finding the Third Proportional to 55,367,072 and 121,156,171

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Solution

The third proportional to 55,367,072 and 121,156,171 is: 265,118,187.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,367,072 : 121,156,171 = 121,156,171 : x
  2. Step 2: Convert to fraction form
    55,367,072/121,156,171 = 121,156,171/x
  3. Step 3: Cross multiply
    55,367,072x = 121,156,171 × 121,156,171
  4. Step 4: Simplify right side
    55,367,072x = 14,678,817,771,381,240
  5. Step 5: Solve for x
    x = 14,678,817,771,381,240/55,367,072
  6. Step 6: Final answer
    x = 265,118,187.42

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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.