Home / 5,428,286.40-8,142,429.60-1,882,430.40

Finding the Fourth Proportional to 5,428,286.40, 8,142,429.60 and 1,882,430.40

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Solution

The fourth proportional to 5,428,286.40, 8,142,429.60 and 1,882,430.40 is: 2,823,645.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,428,286.40 : 8,142,429.60 = 1,882,430.40 : x
  2. Step 2: Convert to fraction form
    5,428,286.40/8,142,429.60 = 1,882,430.40/x
  3. Step 3: Cross multiply
    5,428,286.40x = 8,142,429.60 × 1,882,430.40
  4. Step 4: Simplify right side
    5,428,286.40x = 15,327,557,008,899.84
  5. Step 5: Solve for x
    x = 15,327,557,008,899.84/5,428,286.40
  6. Step 6: Final answer
    x = 2,823,645.60

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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.