Home / 8,212,831.20-12,319,246.80-2,229,199.20

Finding the Fourth Proportional to 8,212,831.20, 12,319,246.80 and 2,229,199.20

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Solution

The fourth proportional to 8,212,831.20, 12,319,246.80 and 2,229,199.20 is: 3,343,798.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,212,831.20 : 12,319,246.80 = 2,229,199.20 : x
  2. Step 2: Convert to fraction form
    8,212,831.20/12,319,246.80 = 2,229,199.20/x
  3. Step 3: Cross multiply
    8,212,831.20x = 12,319,246.80 × 2,229,199.20
  4. Step 4: Simplify right side
    8,212,831.20x = 27,462,055,111,162.56
  5. Step 5: Solve for x
    x = 27,462,055,111,162.56/8,212,831.20
  6. Step 6: Final answer
    x = 3,343,798.80

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1.5x scale

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.