Home / 12,179,149.88-18,263,264.58-7,257,502.76

Finding the Fourth Proportional to 12,179,149.88, 18,263,264.58 and 7,257,502.76

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Solution

The fourth proportional to 12,179,149.88, 18,263,264.58 and 7,257,502.76 is: 10,883,000.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,179,149.88 : 18,263,264.58 = 7,257,502.76 : x
  2. Step 2: Convert to fraction form
    12,179,149.88/18,263,264.58 = 7,257,502.76/x
  3. Step 3: Cross multiply
    12,179,149.88x = 18,263,264.58 × 7,257,502.76
  4. Step 4: Simplify right side
    12,179,149.88x = 132,545,693,004,643.91
  5. Step 5: Solve for x
    x = 132,545,693,004,643.91/12,179,149.88
  6. Step 6: Final answer
    x = 10,883,000.40

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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.