Home / 1,137,317,661.12-1,706,040,307.68-319,366,189.20

Finding the Fourth Proportional to 1,137,317,661.12, 1,706,040,307.68 and 319,366,189.20

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Solution

The fourth proportional to 1,137,317,661.12, 1,706,040,307.68 and 319,366,189.20 is: 479,067,203.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,137,317,661.12 : 1,706,040,307.68 = 319,366,189.20 : x
  2. Step 2: Convert to fraction form
    1,137,317,661.12/1,706,040,307.68 = 319,366,189.20/x
  3. Step 3: Cross multiply
    1,137,317,661.12x = 1,706,040,307.68 × 319,366,189.20
  4. Step 4: Simplify right side
    1,137,317,661.12x = 544,851,591,685,357,120
  5. Step 5: Solve for x
    x = 544,851,591,685,357,120/1,137,317,661.12
  6. Step 6: Final answer
    x = 479,067,203.75

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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.