Home / 15,862,799.50-21,890,794.53-8,619,455.50

Finding the Fourth Proportional to 15,862,799.50, 21,890,794.53 and 8,619,455.50

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Solution

The fourth proportional to 15,862,799.50, 21,890,794.53 and 8,619,455.50 is: 11,894,919.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,862,799.50 : 21,890,794.53 = 8,619,455.50 : x
  2. Step 2: Convert to fraction form
    15,862,799.50/21,890,794.53 = 8,619,455.50/x
  3. Step 3: Cross multiply
    15,862,799.50x = 21,890,794.53 × 8,619,455.50
  4. Step 4: Simplify right side
    15,862,799.50x = 188,686,729,310,978.44
  5. Step 5: Solve for x
    x = 188,686,729,310,978.44/15,862,799.50
  6. Step 6: Final answer
    x = 11,894,919.89

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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.