Home / 21,844,341.78-30,145,915.68-11,921,767.77

Finding the Fourth Proportional to 21,844,341.78, 30,145,915.68 and 11,921,767.77

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Solution

The fourth proportional to 21,844,341.78, 30,145,915.68 and 11,921,767.77 is: 16,452,434.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,844,341.78 : 30,145,915.68 = 11,921,767.77 : x
  2. Step 2: Convert to fraction form
    21,844,341.78/30,145,915.68 = 11,921,767.77/x
  3. Step 3: Cross multiply
    21,844,341.78x = 30,145,915.68 × 11,921,767.77
  4. Step 4: Simplify right side
    21,844,341.78x = 359,392,605,950,961.62
  5. Step 5: Solve for x
    x = 359,392,605,950,961.62/21,844,341.78
  6. Step 6: Final answer
    x = 16,452,434.67

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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.