Home / 12,157,656.12-18,236,506.86-4,969,184.76

Finding the Fourth Proportional to 12,157,656.12, 18,236,506.86 and 4,969,184.76

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Solution

The fourth proportional to 12,157,656.12, 18,236,506.86 and 4,969,184.76 is: 7,453,786.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,157,656.12 : 18,236,506.86 = 4,969,184.76 : x
  2. Step 2: Convert to fraction form
    12,157,656.12/18,236,506.86 = 4,969,184.76/x
  3. Step 3: Cross multiply
    12,157,656.12x = 18,236,506.86 × 4,969,184.76
  4. Step 4: Simplify right side
    12,157,656.12x = 90,620,571,964,347.45
  5. Step 5: Solve for x
    x = 90,620,571,964,347.45/12,157,656.12
  6. Step 6: Final answer
    x = 7,453,786.41

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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.