Home / 201,532,481.21-278,105,878.36-112,229,031.69

Finding the Fourth Proportional to 201,532,481.21, 278,105,878.36 and 112,229,031.69

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Solution

The fourth proportional to 201,532,481.21, 278,105,878.36 and 112,229,031.69 is: 154,871,082.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,532,481.21 : 278,105,878.36 = 112,229,031.69 : x
  2. Step 2: Convert to fraction form
    201,532,481.21/278,105,878.36 = 112,229,031.69/x
  3. Step 3: Cross multiply
    201,532,481.21x = 278,105,878.36 × 112,229,031.69
  4. Step 4: Simplify right side
    201,532,481.21x = 31,211,553,435,672,120
  5. Step 5: Solve for x
    x = 31,211,553,435,672,120/201,532,481.21
  6. Step 6: Final answer
    x = 154,871,082.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.