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Finding the Third Proportional to 279,014,957 and 435,476,059

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Solution

The third proportional to 279,014,957 and 435,476,059 is: 679,674,666.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,014,957 : 435,476,059 = 435,476,059 : x
  2. Step 2: Convert to fraction form
    279,014,957/435,476,059 = 435,476,059/x
  3. Step 3: Cross multiply
    279,014,957x = 435,476,059 × 435,476,059
  4. Step 4: Simplify right side
    279,014,957x = 189,639,397,962,171,488
  5. Step 5: Solve for x
    x = 189,639,397,962,171,488/279,014,957
  6. Step 6: Final answer
    x = 679,674,666.91

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.