Home / 12,848,983.36-19,247,778.06-7,728,586.72

Finding the Fourth Proportional to 12,848,983.36, 19,247,778.06 and 7,728,586.72

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Solution

The fourth proportional to 12,848,983.36, 19,247,778.06 and 7,728,586.72 is: 11,577,423.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,848,983.36 : 19,247,778.06 = 7,728,586.72 : x
  2. Step 2: Convert to fraction form
    12,848,983.36/19,247,778.06 = 7,728,586.72/x
  3. Step 3: Cross multiply
    12,848,983.36x = 19,247,778.06 × 7,728,586.72
  4. Step 4: Simplify right side
    12,848,983.36x = 148,758,121,904,023.34
  5. Step 5: Solve for x
    x = 148,758,121,904,023.34/12,848,983.36
  6. Step 6: Final answer
    x = 11,577,423.50

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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.