Home / 9,619,879.79-13,275,441.27-5,209,639.66

Finding the Fourth Proportional to 9,619,879.79, 13,275,441.27 and 5,209,639.66

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Solution

The fourth proportional to 9,619,879.79, 13,275,441.27 and 5,209,639.66 is: 7,189,306.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,619,879.79 : 13,275,441.27 = 5,209,639.66 : x
  2. Step 2: Convert to fraction form
    9,619,879.79/13,275,441.27 = 5,209,639.66/x
  3. Step 3: Cross multiply
    9,619,879.79x = 13,275,441.27 × 5,209,639.66
  4. Step 4: Simplify right side
    9,619,879.79x = 69,160,265,344,192.77
  5. Step 5: Solve for x
    x = 69,160,265,344,192.77/9,619,879.79
  6. Step 6: Final answer
    x = 7,189,306.61

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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.