Home / 7,859,902.16-11,789,852.52-2,180,126.72

Finding the Fourth Proportional to 7,859,902.16, 11,789,852.52 and 2,180,126.72

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Solution

The fourth proportional to 7,859,902.16, 11,789,852.52 and 2,180,126.72 is: 3,270,189.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,859,902.16 : 11,789,852.52 = 2,180,126.72 : x
  2. Step 2: Convert to fraction form
    7,859,902.16/11,789,852.52 = 2,180,126.72/x
  3. Step 3: Cross multiply
    7,859,902.16x = 11,789,852.52 × 2,180,126.72
  4. Step 4: Simplify right side
    7,859,902.16x = 25,703,372,503,711.34
  5. Step 5: Solve for x
    x = 25,703,372,503,711.34/7,859,902.16
  6. Step 6: Final answer
    x = 3,270,189.88

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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.