Home / 7,149,120.51-9,865,856.42-3,885,933.22

Finding the Fourth Proportional to 7,149,120.51, 9,865,856.42 and 3,885,933.22

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Solution

The fourth proportional to 7,149,120.51, 9,865,856.42 and 3,885,933.22 is: 5,362,625.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,149,120.51 : 9,865,856.42 = 3,885,933.22 : x
  2. Step 2: Convert to fraction form
    7,149,120.51/9,865,856.42 = 3,885,933.22/x
  3. Step 3: Cross multiply
    7,149,120.51x = 9,865,856.42 × 3,885,933.22
  4. Step 4: Simplify right side
    7,149,120.51x = 38,338,059,176,706.21
  5. Step 5: Solve for x
    x = 38,338,059,176,706.21/7,149,120.51
  6. Step 6: Final answer
    x = 5,362,625.95

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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.