Home / 7,676,781.40-11,511,321.61-2,557,411.47

Finding the Fourth Proportional to 7,676,781.40, 11,511,321.61 and 2,557,411.47

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Solution

The fourth proportional to 7,676,781.40, 11,511,321.61 and 2,557,411.47 is: 3,834,834.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,676,781.40 : 11,511,321.61 = 2,557,411.47 : x
  2. Step 2: Convert to fraction form
    7,676,781.40/11,511,321.61 = 2,557,411.47/x
  3. Step 3: Cross multiply
    7,676,781.40x = 11,511,321.61 × 2,557,411.47
  4. Step 4: Simplify right side
    7,676,781.40x = 29,439,185,943,858.63
  5. Step 5: Solve for x
    x = 29,439,185,943,858.63/7,676,781.40
  6. Step 6: Final answer
    x = 3,834,834.47

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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.