Home / 766,157,987,379.30-1,149,238,087,139.30-312,876,891,454.94

Finding the Fourth Proportional to 766,157,987,379.30, 1,149,238,087,139.30 and 312,876,891,454.94

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Solution

The fourth proportional to 766,157,987,379.30, 1,149,238,087,139.30 and 312,876,891,454.94 is: 469,315,788,869.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,157,987,379.30 : 1,149,238,087,139.30 = 312,876,891,454.94 : x
  2. Step 2: Convert to fraction form
    766,157,987,379.30/1,149,238,087,139.30 = 312,876,891,454.94/x
  3. Step 3: Cross multiply
    766,157,987,379.30x = 1,149,238,087,139.30 × 312,876,891,454.94
  4. Step 4: Simplify right side
    766,157,987,379.30x = 359,570,040,245,765,644,746,752
  5. Step 5: Solve for x
    x = 359,570,040,245,765,644,746,752/766,157,987,379.30
  6. Step 6: Final answer
    x = 469,315,788,869.74

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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.