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Finding the Third Proportional to 316,685,560 and 490,352,252

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Solution

The third proportional to 316,685,560 and 490,352,252 is: 759,255,745.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,685,560 : 490,352,252 = 490,352,252 : x
  2. Step 2: Convert to fraction form
    316,685,560/490,352,252 = 490,352,252/x
  3. Step 3: Cross multiply
    316,685,560x = 490,352,252 × 490,352,252
  4. Step 4: Simplify right side
    316,685,560x = 240,445,331,041,471,488
  5. Step 5: Solve for x
    x = 240,445,331,041,471,488/316,685,560
  6. Step 6: Final answer
    x = 759,255,745.80

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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.