Home / 15,785,867.40-21,784,496.18-8,542,523.40

Finding the Fourth Proportional to 15,785,867.40, 21,784,496.18 and 8,542,523.40

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Solution

The fourth proportional to 15,785,867.40, 21,784,496.18 and 8,542,523.40 is: 11,788,681.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,785,867.40 : 21,784,496.18 = 8,542,523.40 : x
  2. Step 2: Convert to fraction form
    15,785,867.40/21,784,496.18 = 8,542,523.40/x
  3. Step 3: Cross multiply
    15,785,867.40x = 21,784,496.18 × 8,542,523.40
  4. Step 4: Simplify right side
    15,785,867.40x = 186,094,568,374,860.62
  5. Step 5: Solve for x
    x = 186,094,568,374,860.62/15,785,867.40
  6. Step 6: Final answer
    x = 11,788,681.84

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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.