Home / 7,728,400.80-11,592,601.20-1,971,123.30

Finding the Fourth Proportional to 7,728,400.80, 11,592,601.20 and 1,971,123.30

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Solution

The fourth proportional to 7,728,400.80, 11,592,601.20 and 1,971,123.30 is: 2,956,684.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,728,400.80 : 11,592,601.20 = 1,971,123.30 : x
  2. Step 2: Convert to fraction form
    7,728,400.80/11,592,601.20 = 1,971,123.30/x
  3. Step 3: Cross multiply
    7,728,400.80x = 11,592,601.20 × 1,971,123.30
  4. Step 4: Simplify right side
    7,728,400.80x = 22,850,446,332,927.96
  5. Step 5: Solve for x
    x = 22,850,446,332,927.96/7,728,400.80
  6. Step 6: Final answer
    x = 2,956,684.95

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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.