Home / 15,785,865.90-21,784,494.11-8,542,521.90

Finding the Fourth Proportional to 15,785,865.90, 21,784,494.11 and 8,542,521.90

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Solution

The fourth proportional to 15,785,865.90, 21,784,494.11 and 8,542,521.90 is: 11,788,679.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,785,865.90 : 21,784,494.11 = 8,542,521.90 : x
  2. Step 2: Convert to fraction form
    15,785,865.90/21,784,494.11 = 8,542,521.90/x
  3. Step 3: Cross multiply
    15,785,865.90x = 21,784,494.11 × 8,542,521.90
  4. Step 4: Simplify right side
    15,785,865.90x = 186,094,518,015,096
  5. Step 5: Solve for x
    x = 186,094,518,015,096/15,785,865.90
  6. Step 6: Final answer
    x = 11,788,679.77

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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.