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Finding the Third Proportional to 66,887,688 and 102,330,638

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Solution

The third proportional to 66,887,688 and 102,330,638 is: 156,554,364.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,887,688 : 102,330,638 = 102,330,638 : x
  2. Step 2: Convert to fraction form
    66,887,688/102,330,638 = 102,330,638/x
  3. Step 3: Cross multiply
    66,887,688x = 102,330,638 × 102,330,638
  4. Step 4: Simplify right side
    66,887,688x = 10,471,559,473,487,044
  5. Step 5: Solve for x
    x = 10,471,559,473,487,044/66,887,688
  6. Step 6: Final answer
    x = 156,554,364.29

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.