Home / 19,184,103.20-28,751,660.40-7,811,703.20

Finding the Fourth Proportional to 19,184,103.20, 28,751,660.40 and 7,811,703.20

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Solution

The fourth proportional to 19,184,103.20, 28,751,660.40 and 7,811,703.20 is: 11,707,580.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,184,103.20 : 28,751,660.40 = 7,811,703.20 : x
  2. Step 2: Convert to fraction form
    19,184,103.20/28,751,660.40 = 7,811,703.20/x
  3. Step 3: Cross multiply
    19,184,103.20x = 28,751,660.40 × 7,811,703.20
  4. Step 4: Simplify right side
    19,184,103.20x = 224,599,437,551,993.28
  5. Step 5: Solve for x
    x = 224,599,437,551,993.28/19,184,103.20
  6. Step 6: Final answer
    x = 11,707,580.76

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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.