Home / 6,121,686.60-9,172,032.30-3,990,673.80

Finding the Fourth Proportional to 6,121,686.60, 9,172,032.30 and 3,990,673.80

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Solution

The fourth proportional to 6,121,686.60, 9,172,032.30 and 3,990,673.80 is: 5,979,167.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,121,686.60 : 9,172,032.30 = 3,990,673.80 : x
  2. Step 2: Convert to fraction form
    6,121,686.60/9,172,032.30 = 3,990,673.80/x
  3. Step 3: Cross multiply
    6,121,686.60x = 9,172,032.30 × 3,990,673.80
  4. Step 4: Simplify right side
    6,121,686.60x = 36,602,588,992,363.74
  5. Step 5: Solve for x
    x = 36,602,588,992,363.74/6,121,686.60
  6. Step 6: Final answer
    x = 5,979,167.41

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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.