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Finding the Third Proportional to 317,604,578 and 485,750,019

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Solution

The third proportional to 317,604,578 and 485,750,019 is: 742,914,609.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,604,578 : 485,750,019 = 485,750,019 : x
  2. Step 2: Convert to fraction form
    317,604,578/485,750,019 = 485,750,019/x
  3. Step 3: Cross multiply
    317,604,578x = 485,750,019 × 485,750,019
  4. Step 4: Simplify right side
    317,604,578x = 235,953,080,958,500,352
  5. Step 5: Solve for x
    x = 235,953,080,958,500,352/317,604,578
  6. Step 6: Final answer
    x = 742,914,609.24

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.