Home / 930,888,979.60-1,396,333,469.40-317,493,216.40

Finding the Fourth Proportional to 930,888,979.60, 1,396,333,469.40 and 317,493,216.40

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Solution

The fourth proportional to 930,888,979.60, 1,396,333,469.40 and 317,493,216.40 is: 476,239,824.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    930,888,979.60 : 1,396,333,469.40 = 317,493,216.40 : x
  2. Step 2: Convert to fraction form
    930,888,979.60/1,396,333,469.40 = 317,493,216.40/x
  3. Step 3: Cross multiply
    930,888,979.60x = 1,396,333,469.40 × 317,493,216.40
  4. Step 4: Simplify right side
    930,888,979.60x = 443,326,404,366,776,960
  5. Step 5: Solve for x
    x = 443,326,404,366,776,960/930,888,979.60
  6. Step 6: Final answer
    x = 476,239,824.60

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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.