Home / 7,140,651-9,854,067.22-3,877,439.28

Finding the Fourth Proportional to 7,140,651, 9,854,067.22 and 3,877,439.28

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Solution

The fourth proportional to 7,140,651, 9,854,067.22 and 3,877,439.28 is: 5,350,849.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,140,651 : 9,854,067.22 = 3,877,439.28 : x
  2. Step 2: Convert to fraction form
    7,140,651/9,854,067.22 = 3,877,439.28/x
  3. Step 3: Cross multiply
    7,140,651x = 9,854,067.22 × 3,877,439.28
  4. Step 4: Simplify right side
    7,140,651x = 38,208,547,306,588.40
  5. Step 5: Solve for x
    x = 38,208,547,306,588.40/7,140,651
  6. Step 6: Final answer
    x = 5,350,849.29

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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.