Home / 5,278,831.88-7,918,244.94-1,913,033.48

Finding the Fourth Proportional to 5,278,831.88, 7,918,244.94 and 1,913,033.48

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Solution

The fourth proportional to 5,278,831.88, 7,918,244.94 and 1,913,033.48 is: 2,869,549.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,278,831.88 : 7,918,244.94 = 1,913,033.48 : x
  2. Step 2: Convert to fraction form
    5,278,831.88/7,918,244.94 = 1,913,033.48/x
  3. Step 3: Cross multiply
    5,278,831.88x = 7,918,244.94 × 1,913,033.48
  4. Step 4: Simplify right side
    5,278,831.88x = 15,147,867,673,060.59
  5. Step 5: Solve for x
    x = 15,147,867,673,060.59/5,278,831.88
  6. Step 6: Final answer
    x = 2,869,549.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.