Home / 7,045,831.62-9,723,847.29-3,990,589.38

Finding the Fourth Proportional to 7,045,831.62, 9,723,847.29 and 3,990,589.38

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Solution

The fourth proportional to 7,045,831.62, 9,723,847.29 and 3,990,589.38 is: 5,507,352.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,045,831.62 : 9,723,847.29 = 3,990,589.38 : x
  2. Step 2: Convert to fraction form
    7,045,831.62/9,723,847.29 = 3,990,589.38/x
  3. Step 3: Cross multiply
    7,045,831.62x = 9,723,847.29 × 3,990,589.38
  4. Step 4: Simplify right side
    7,045,831.62x = 38,803,881,728,215.77
  5. Step 5: Solve for x
    x = 38,803,881,728,215.77/7,045,831.62
  6. Step 6: Final answer
    x = 5,507,352.97

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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.