Home / 21,860,831.20-32,791,246.80-12,790,904.80

Finding the Fourth Proportional to 21,860,831.20, 32,791,246.80 and 12,790,904.80

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Solution

The fourth proportional to 21,860,831.20, 32,791,246.80 and 12,790,904.80 is: 19,186,357.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,860,831.20 : 32,791,246.80 = 12,790,904.80 : x
  2. Step 2: Convert to fraction form
    21,860,831.20/32,791,246.80 = 12,790,904.80/x
  3. Step 3: Cross multiply
    21,860,831.20x = 32,791,246.80 × 12,790,904.80
  4. Step 4: Simplify right side
    21,860,831.20x = 419,429,716,092,104.69
  5. Step 5: Solve for x
    x = 419,429,716,092,104.69/21,860,831.20
  6. Step 6: Final answer
    x = 19,186,357.20

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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.