Home / 12,219,437.75-18,329,156.64-3,121,555.34

Finding the Fourth Proportional to 12,219,437.75, 18,329,156.64 and 3,121,555.34

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Solution

The fourth proportional to 12,219,437.75, 18,329,156.64 and 3,121,555.34 is: 4,682,333.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,219,437.75 : 18,329,156.64 = 3,121,555.34 : x
  2. Step 2: Convert to fraction form
    12,219,437.75/18,329,156.64 = 3,121,555.34/x
  3. Step 3: Cross multiply
    12,219,437.75x = 18,329,156.64 × 3,121,555.34
  4. Step 4: Simplify right side
    12,219,437.75x = 57,215,476,695,642.67
  5. Step 5: Solve for x
    x = 57,215,476,695,642.67/12,219,437.75
  6. Step 6: Final answer
    x = 4,682,333.01

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1.5x scale

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.