Home / 20,955,093.40-31,468,506.90-11,389,155.40

Finding the Fourth Proportional to 20,955,093.40, 31,468,506.90 and 11,389,155.40

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Solution

The fourth proportional to 20,955,093.40, 31,468,506.90 and 11,389,155.40 is: 17,103,226.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,955,093.40 : 31,468,506.90 = 11,389,155.40 : x
  2. Step 2: Convert to fraction form
    20,955,093.40/31,468,506.90 = 11,389,155.40/x
  3. Step 3: Cross multiply
    20,955,093.40x = 31,468,506.90 × 11,389,155.40
  4. Step 4: Simplify right side
    20,955,093.40x = 358,399,715,290,072.25
  5. Step 5: Solve for x
    x = 358,399,715,290,072.25/20,955,093.40
  6. Step 6: Final answer
    x = 17,103,226.81

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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.