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Finding the Third Proportional to 108,857,385 and 168,551,280

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Solution

The third proportional to 108,857,385 and 168,551,280 is: 260,979,390.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,857,385 : 168,551,280 = 168,551,280 : x
  2. Step 2: Convert to fraction form
    108,857,385/168,551,280 = 168,551,280/x
  3. Step 3: Cross multiply
    108,857,385x = 168,551,280 × 168,551,280
  4. Step 4: Simplify right side
    108,857,385x = 28,409,533,989,638,400
  5. Step 5: Solve for x
    x = 28,409,533,989,638,400/108,857,385
  6. Step 6: Final answer
    x = 260,979,390.51

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.