Home / 12,606,410.40-18,923,612.40-7,819,504.80

Finding the Fourth Proportional to 12,606,410.40, 18,923,612.40 and 7,819,504.80

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Solution

The fourth proportional to 12,606,410.40, 18,923,612.40 and 7,819,504.80 is: 11,737,939.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,606,410.40 : 18,923,612.40 = 7,819,504.80 : x
  2. Step 2: Convert to fraction form
    12,606,410.40/18,923,612.40 = 7,819,504.80/x
  3. Step 3: Cross multiply
    12,606,410.40x = 18,923,612.40 × 7,819,504.80
  4. Step 4: Simplify right side
    12,606,410.40x = 147,973,277,995,139.50
  5. Step 5: Solve for x
    x = 147,973,277,995,139.50/12,606,410.40
  6. Step 6: Final answer
    x = 11,737,939.14

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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.