Home / 13,183,123.20-19,774,684.80-5,203,910.40

Finding the Fourth Proportional to 13,183,123.20, 19,774,684.80 and 5,203,910.40

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Solution

The fourth proportional to 13,183,123.20, 19,774,684.80 and 5,203,910.40 is: 7,805,865.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,183,123.20 : 19,774,684.80 = 5,203,910.40 : x
  2. Step 2: Convert to fraction form
    13,183,123.20/19,774,684.80 = 5,203,910.40/x
  3. Step 3: Cross multiply
    13,183,123.20x = 19,774,684.80 × 5,203,910.40
  4. Step 4: Simplify right side
    13,183,123.20x = 102,905,687,887,441.94
  5. Step 5: Solve for x
    x = 102,905,687,887,441.94/13,183,123.20
  6. Step 6: Final answer
    x = 7,805,865.60

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Similar ratio
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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.