Home / 5,286,381.58-7,925,693.82-1,690,078.78

Finding the Fourth Proportional to 5,286,381.58, 7,925,693.82 and 1,690,078.78

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Solution

The fourth proportional to 5,286,381.58, 7,925,693.82 and 1,690,078.78 is: 2,533,878.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,286,381.58 : 7,925,693.82 = 1,690,078.78 : x
  2. Step 2: Convert to fraction form
    5,286,381.58/7,925,693.82 = 1,690,078.78/x
  3. Step 3: Cross multiply
    5,286,381.58x = 7,925,693.82 × 1,690,078.78
  4. Step 4: Simplify right side
    5,286,381.58x = 13,395,046,941,959.14
  5. Step 5: Solve for x
    x = 13,395,046,941,959.14/5,286,381.58
  6. Step 6: Final answer
    x = 2,533,878.18

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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.