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Finding the Third Proportional to 18,455,688 and 40,385,385

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Solution

The third proportional to 18,455,688 and 40,385,385 is: 88,372,718.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,455,688 : 40,385,385 = 40,385,385 : x
  2. Step 2: Convert to fraction form
    18,455,688/40,385,385 = 40,385,385/x
  3. Step 3: Cross multiply
    18,455,688x = 40,385,385 × 40,385,385
  4. Step 4: Simplify right side
    18,455,688x = 1,630,979,321,598,225
  5. Step 5: Solve for x
    x = 1,630,979,321,598,225/18,455,688
  6. Step 6: Final answer
    x = 88,372,718.57

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These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.