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Finding the Third Proportional to 90,569,688 and 198,932,160

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Solution

The third proportional to 90,569,688 and 198,932,160 is: 436,945,352.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,569,688 : 198,932,160 = 198,932,160 : x
  2. Step 2: Convert to fraction form
    90,569,688/198,932,160 = 198,932,160/x
  3. Step 3: Cross multiply
    90,569,688x = 198,932,160 × 198,932,160
  4. Step 4: Simplify right side
    90,569,688x = 39,574,004,282,265,600
  5. Step 5: Solve for x
    x = 39,574,004,282,265,600/90,569,688
  6. Step 6: Final answer
    x = 436,945,352.87

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.