Home / 930,888,971.10-1,396,333,456.65-317,493,207.90

Finding the Fourth Proportional to 930,888,971.10, 1,396,333,456.65 and 317,493,207.90

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Solution

The fourth proportional to 930,888,971.10, 1,396,333,456.65 and 317,493,207.90 is: 476,239,811.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    930,888,971.10 : 1,396,333,456.65 = 317,493,207.90 : x
  2. Step 2: Convert to fraction form
    930,888,971.10/1,396,333,456.65 = 317,493,207.90/x
  3. Step 3: Cross multiply
    930,888,971.10x = 1,396,333,456.65 × 317,493,207.90
  4. Step 4: Simplify right side
    930,888,971.10x = 443,326,388,449,904,064
  5. Step 5: Solve for x
    x = 443,326,388,449,904,064/930,888,971.10
  6. Step 6: Final answer
    x = 476,239,811.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.