Home / 21,219,078.32-31,834,467.48-8,448,551.12

Finding the Fourth Proportional to 21,219,078.32, 31,834,467.48 and 8,448,551.12

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Solution

The fourth proportional to 21,219,078.32, 31,834,467.48 and 8,448,551.12 is: 12,675,155.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,219,078.32 : 31,834,467.48 = 8,448,551.12 : x
  2. Step 2: Convert to fraction form
    21,219,078.32/31,834,467.48 = 8,448,551.12/x
  3. Step 3: Cross multiply
    21,219,078.32x = 31,834,467.48 × 8,448,551.12
  4. Step 4: Simplify right side
    21,219,078.32x = 268,955,125,882,757.56
  5. Step 5: Solve for x
    x = 268,955,125,882,757.56/21,219,078.32
  6. Step 6: Final answer
    x = 12,675,155.91

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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.