Home / 6,889,639.28-9,507,084.24-3,989,225.92

Finding the Fourth Proportional to 6,889,639.28, 9,507,084.24 and 3,989,225.92

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Solution

The fourth proportional to 6,889,639.28, 9,507,084.24 and 3,989,225.92 is: 5,504,773.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,889,639.28 : 9,507,084.24 = 3,989,225.92 : x
  2. Step 2: Convert to fraction form
    6,889,639.28/9,507,084.24 = 3,989,225.92/x
  3. Step 3: Cross multiply
    6,889,639.28x = 9,507,084.24 × 3,989,225.92
  4. Step 4: Simplify right side
    6,889,639.28x = 37,925,906,873,831.50
  5. Step 5: Solve for x
    x = 37,925,906,873,831.50/6,889,639.28
  6. Step 6: Final answer
    x = 5,504,773.96

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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.