Home / 12,128,422.65-18,188,205.30-4,041,662.10

Finding the Fourth Proportional to 12,128,422.65, 18,188,205.30 and 4,041,662.10

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Solution

The fourth proportional to 12,128,422.65, 18,188,205.30 and 4,041,662.10 is: 6,061,017.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,128,422.65 : 18,188,205.30 = 4,041,662.10 : x
  2. Step 2: Convert to fraction form
    12,128,422.65/18,188,205.30 = 4,041,662.10/x
  3. Step 3: Cross multiply
    12,128,422.65x = 18,188,205.30 × 4,041,662.10
  4. Step 4: Simplify right side
    12,128,422.65x = 73,510,580,028,029.14
  5. Step 5: Solve for x
    x = 73,510,580,028,029.14/12,128,422.65
  6. Step 6: Final answer
    x = 6,061,017.34

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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.