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Finding the Third Proportional to 36,283,890 and 78,339,840

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Solution

The third proportional to 36,283,890 and 78,339,840 is: 169,142,022.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,283,890 : 78,339,840 = 78,339,840 : x
  2. Step 2: Convert to fraction form
    36,283,890/78,339,840 = 78,339,840/x
  3. Step 3: Cross multiply
    36,283,890x = 78,339,840 × 78,339,840
  4. Step 4: Simplify right side
    36,283,890x = 6,137,130,531,225,600
  5. Step 5: Solve for x
    x = 6,137,130,531,225,600/36,283,890
  6. Step 6: Final answer
    x = 169,142,022.29

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.