Home / 15,785,788.50-21,784,388.13-8,542,444.50

Finding the Fourth Proportional to 15,785,788.50, 21,784,388.13 and 8,542,444.50

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Solution

The fourth proportional to 15,785,788.50, 21,784,388.13 and 8,542,444.50 is: 11,788,573.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,785,788.50 : 21,784,388.13 = 8,542,444.50 : x
  2. Step 2: Convert to fraction form
    15,785,788.50/21,784,388.13 = 8,542,444.50/x
  3. Step 3: Cross multiply
    15,785,788.50x = 21,784,388.13 × 8,542,444.50
  4. Step 4: Simplify right side
    15,785,788.50x = 186,091,926,566,983.78
  5. Step 5: Solve for x
    x = 186,091,926,566,983.78/15,785,788.50
  6. Step 6: Final answer
    x = 11,788,573.41

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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.