Home / 20,993,942.70-31,490,914.05-8,877,087.90

Finding the Fourth Proportional to 20,993,942.70, 31,490,914.05 and 8,877,087.90

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Solution

The fourth proportional to 20,993,942.70, 31,490,914.05 and 8,877,087.90 is: 13,315,631.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,993,942.70 : 31,490,914.05 = 8,877,087.90 : x
  2. Step 2: Convert to fraction form
    20,993,942.70/31,490,914.05 = 8,877,087.90/x
  3. Step 3: Cross multiply
    20,993,942.70x = 31,490,914.05 × 8,877,087.90
  4. Step 4: Simplify right side
    20,993,942.70x = 279,547,612,073,195
  5. Step 5: Solve for x
    x = 279,547,612,073,195/20,993,942.70
  6. Step 6: Final answer
    x = 13,315,631.85

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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.