Home / 56,891,963.88-78,511,116.82-30,786,478.86

Finding the Fourth Proportional to 56,891,963.88, 78,511,116.82 and 30,786,478.86

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Solution

The fourth proportional to 56,891,963.88, 78,511,116.82 and 30,786,478.86 is: 42,485,452.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,891,963.88 : 78,511,116.82 = 30,786,478.86 : x
  2. Step 2: Convert to fraction form
    56,891,963.88/78,511,116.82 = 30,786,478.86/x
  3. Step 3: Cross multiply
    56,891,963.88x = 78,511,116.82 × 30,786,478.86
  4. Step 4: Simplify right side
    56,891,963.88x = 2,417,080,838,253,920
  5. Step 5: Solve for x
    x = 2,417,080,838,253,920/56,891,963.88
  6. Step 6: Final answer
    x = 42,485,452.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.