Home / 6,897,620.38-9,518,718.74-3,998,691.72

Finding the Fourth Proportional to 6,897,620.38, 9,518,718.74 and 3,998,691.72

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Solution

The fourth proportional to 6,897,620.38, 9,518,718.74 and 3,998,691.72 is: 5,518,196.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,897,620.38 : 9,518,718.74 = 3,998,691.72 : x
  2. Step 2: Convert to fraction form
    6,897,620.38/9,518,718.74 = 3,998,691.72/x
  3. Step 3: Cross multiply
    6,897,620.38x = 9,518,718.74 × 3,998,691.72
  4. Step 4: Simplify right side
    6,897,620.38x = 38,062,421,810,646.84
  5. Step 5: Solve for x
    x = 38,062,421,810,646.84/6,897,620.38
  6. Step 6: Final answer
    x = 5,518,196.09

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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.