Home / 20,940,056.10-31,435,672.05-11,848,478.40

Finding the Fourth Proportional to 20,940,056.10, 31,435,672.05 and 11,848,478.40

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Solution

The fourth proportional to 20,940,056.10, 31,435,672.05 and 11,848,478.40 is: 17,787,195.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,940,056.10 : 31,435,672.05 = 11,848,478.40 : x
  2. Step 2: Convert to fraction form
    20,940,056.10/31,435,672.05 = 11,848,478.40/x
  3. Step 3: Cross multiply
    20,940,056.10x = 31,435,672.05 × 11,848,478.40
  4. Step 4: Simplify right side
    20,940,056.10x = 372,464,881,273,908.75
  5. Step 5: Solve for x
    x = 372,464,881,273,908.75/20,940,056.10
  6. Step 6: Final answer
    x = 17,787,195.96

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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.