Home / 20,903,640-28,847,023.27-11,736,479.58

Finding the Fourth Proportional to 20,903,640, 28,847,023.27 and 11,736,479.58

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Solution

The fourth proportional to 20,903,640, 28,847,023.27 and 11,736,479.58 is: 16,196,341.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,903,640 : 28,847,023.27 = 11,736,479.58 : x
  2. Step 2: Convert to fraction form
    20,903,640/28,847,023.27 = 11,736,479.58/x
  3. Step 3: Cross multiply
    20,903,640x = 28,847,023.27 × 11,736,479.58
  4. Step 4: Simplify right side
    20,903,640x = 338,562,499,522,798.62
  5. Step 5: Solve for x
    x = 338,562,499,522,798.62/20,903,640
  6. Step 6: Final answer
    x = 16,196,341.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.