Home / 20,908,439.84-31,351,890.80-9,384,027.59

Finding the Fourth Proportional to 20,908,439.84, 31,351,890.80 and 9,384,027.59

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Solution

The fourth proportional to 20,908,439.84, 31,351,890.80 and 9,384,027.59 is: 14,071,208.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,908,439.84 : 31,351,890.80 = 9,384,027.59 : x
  2. Step 2: Convert to fraction form
    20,908,439.84/31,351,890.80 = 9,384,027.59/x
  3. Step 3: Cross multiply
    20,908,439.84x = 31,351,890.80 × 9,384,027.59
  4. Step 4: Simplify right side
    20,908,439.84x = 294,207,008,109,107.75
  5. Step 5: Solve for x
    x = 294,207,008,109,107.75/20,908,439.84
  6. Step 6: Final answer
    x = 14,071,208.10

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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.