Home / 12,367,821.68-18,551,831.16-5,079,403.70

Finding the Fourth Proportional to 12,367,821.68, 18,551,831.16 and 5,079,403.70

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Solution

The fourth proportional to 12,367,821.68, 18,551,831.16 and 5,079,403.70 is: 7,619,146.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,367,821.68 : 18,551,831.16 = 5,079,403.70 : x
  2. Step 2: Convert to fraction form
    12,367,821.68/18,551,831.16 = 5,079,403.70/x
  3. Step 3: Cross multiply
    12,367,821.68x = 18,551,831.16 × 5,079,403.70
  4. Step 4: Simplify right side
    12,367,821.68x = 94,232,239,835,879.30
  5. Step 5: Solve for x
    x = 94,232,239,835,879.30/12,367,821.68
  6. Step 6: Final answer
    x = 7,619,146.06

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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.