Home / 218,794,302.36-328,192,009.40-89,401,912.65

Finding the Fourth Proportional to 218,794,302.36, 328,192,009.40 and 89,401,912.65

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Solution

The fourth proportional to 218,794,302.36, 328,192,009.40 and 89,401,912.65 is: 134,103,096.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,794,302.36 : 328,192,009.40 = 89,401,912.65 : x
  2. Step 2: Convert to fraction form
    218,794,302.36/328,192,009.40 = 89,401,912.65/x
  3. Step 3: Cross multiply
    218,794,302.36x = 328,192,009.40 × 89,401,912.65
  4. Step 4: Simplify right side
    218,794,302.36x = 29,340,993,356,806,780
  5. Step 5: Solve for x
    x = 29,340,993,356,806,780/218,794,302.36
  6. Step 6: Final answer
    x = 134,103,096.11

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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.