Home / 38,524,491.78-53,162,387.90-21,120,455.14

Finding the Fourth Proportional to 38,524,491.78, 53,162,387.90 and 21,120,455.14

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Solution

The fourth proportional to 38,524,491.78, 53,162,387.90 and 21,120,455.14 is: 29,145,454.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,524,491.78 : 53,162,387.90 = 21,120,455.14 : x
  2. Step 2: Convert to fraction form
    38,524,491.78/53,162,387.90 = 21,120,455.14/x
  3. Step 3: Cross multiply
    38,524,491.78x = 53,162,387.90 × 21,120,455.14
  4. Step 4: Simplify right side
    38,524,491.78x = 1,122,813,828,777,228.75
  5. Step 5: Solve for x
    x = 1,122,813,828,777,228.75/38,524,491.78
  6. Step 6: Final answer
    x = 29,145,454.67

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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.