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Finding the Third Proportional to 318,028,801.50 and 672,725,209.50

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Solution

The third proportional to 318,028,801.50 and 672,725,209.50 is: 1,423,013,278.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,028,801.50 : 672,725,209.50 = 672,725,209.50 : x
  2. Step 2: Convert to fraction form
    318,028,801.50/672,725,209.50 = 672,725,209.50/x
  3. Step 3: Cross multiply
    318,028,801.50x = 672,725,209.50 × 672,725,209.50
  4. Step 4: Simplify right side
    318,028,801.50x = 452,559,207,496,818,880
  5. Step 5: Solve for x
    x = 452,559,207,496,818,880/318,028,801.50
  6. Step 6: Final answer
    x = 1,423,013,278.55

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.