Home / 10,890,831.60-16,336,247.40-8,339,914.80

Finding the Fourth Proportional to 10,890,831.60, 16,336,247.40 and 8,339,914.80

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Solution

The fourth proportional to 10,890,831.60, 16,336,247.40 and 8,339,914.80 is: 12,509,872.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,890,831.60 : 16,336,247.40 = 8,339,914.80 : x
  2. Step 2: Convert to fraction form
    10,890,831.60/16,336,247.40 = 8,339,914.80/x
  3. Step 3: Cross multiply
    10,890,831.60x = 16,336,247.40 × 8,339,914.80
  4. Step 4: Simplify right side
    10,890,831.60x = 136,242,911,467,721.52
  5. Step 5: Solve for x
    x = 136,242,911,467,721.52/10,890,831.60
  6. Step 6: Final answer
    x = 12,509,872.20

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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.