Home / 12,139,680.58-18,209,520.86-6,745,751.26

Finding the Fourth Proportional to 12,139,680.58, 18,209,520.86 and 6,745,751.26

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Solution

The fourth proportional to 12,139,680.58, 18,209,520.86 and 6,745,751.26 is: 10,118,626.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,139,680.58 : 18,209,520.86 = 6,745,751.26 : x
  2. Step 2: Convert to fraction form
    12,139,680.58/18,209,520.86 = 6,745,751.26/x
  3. Step 3: Cross multiply
    12,139,680.58x = 18,209,520.86 × 6,745,751.26
  4. Step 4: Simplify right side
    12,139,680.58x = 122,836,898,285,341.28
  5. Step 5: Solve for x
    x = 122,836,898,285,341.28/12,139,680.58
  6. Step 6: Final answer
    x = 10,118,626.88

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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.