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Finding the Third Proportional to 30,250,688 and 66,379,072

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Solution

The third proportional to 30,250,688 and 66,379,072 is: 145,655,569.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,250,688 : 66,379,072 = 66,379,072 : x
  2. Step 2: Convert to fraction form
    30,250,688/66,379,072 = 66,379,072/x
  3. Step 3: Cross multiply
    30,250,688x = 66,379,072 × 66,379,072
  4. Step 4: Simplify right side
    30,250,688x = 4,406,181,199,581,184
  5. Step 5: Solve for x
    x = 4,406,181,199,581,184/30,250,688
  6. Step 6: Final answer
    x = 145,655,569.87

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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.