Home / 4,779,781.31-7,172,661.39-1,939,893.47

Finding the Fourth Proportional to 4,779,781.31, 7,172,661.39 and 1,939,893.47

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Solution

The fourth proportional to 4,779,781.31, 7,172,661.39 and 1,939,893.47 is: 2,911,053.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,779,781.31 : 7,172,661.39 = 1,939,893.47 : x
  2. Step 2: Convert to fraction form
    4,779,781.31/7,172,661.39 = 1,939,893.47/x
  3. Step 3: Cross multiply
    4,779,781.31x = 7,172,661.39 × 1,939,893.47
  4. Step 4: Simplify right side
    4,779,781.31x = 13,914,198,957,118.82
  5. Step 5: Solve for x
    x = 13,914,198,957,118.82/4,779,781.31
  6. Step 6: Final answer
    x = 2,911,053.47

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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.