Home / 13,800,921.12-19,045,400.16-7,606,188.96

Finding the Fourth Proportional to 13,800,921.12, 19,045,400.16 and 7,606,188.96

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Solution

The fourth proportional to 13,800,921.12, 19,045,400.16 and 7,606,188.96 is: 10,496,611.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,800,921.12 : 19,045,400.16 = 7,606,188.96 : x
  2. Step 2: Convert to fraction form
    13,800,921.12/19,045,400.16 = 7,606,188.96/x
  3. Step 3: Cross multiply
    13,800,921.12x = 19,045,400.16 × 7,606,188.96
  4. Step 4: Simplify right side
    13,800,921.12x = 144,862,912,435,774.22
  5. Step 5: Solve for x
    x = 144,862,912,435,774.22/13,800,921.12
  6. Step 6: Final answer
    x = 10,496,611.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.