Home / 20,883,516.52-31,356,025.12-11,679,521.72

Finding the Fourth Proportional to 20,883,516.52, 31,356,025.12 and 11,679,521.72

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Solution

The fourth proportional to 20,883,516.52, 31,356,025.12 and 11,679,521.72 is: 17,536,480.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,883,516.52 : 31,356,025.12 = 11,679,521.72 : x
  2. Step 2: Convert to fraction form
    20,883,516.52/31,356,025.12 = 11,679,521.72/x
  3. Step 3: Cross multiply
    20,883,516.52x = 31,356,025.12 × 11,679,521.72
  4. Step 4: Simplify right side
    20,883,516.52x = 366,223,376,441,905.62
  5. Step 5: Solve for x
    x = 366,223,376,441,905.62/20,883,516.52
  6. Step 6: Final answer
    x = 17,536,480.32

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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.