Home / 12,036,111.70-18,043,669.95-7,245,706.90

Finding the Fourth Proportional to 12,036,111.70, 18,043,669.95 and 7,245,706.90

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Solution

The fourth proportional to 12,036,111.70, 18,043,669.95 and 7,245,706.90 is: 10,862,240.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,036,111.70 : 18,043,669.95 = 7,245,706.90 : x
  2. Step 2: Convert to fraction form
    12,036,111.70/18,043,669.95 = 7,245,706.90/x
  3. Step 3: Cross multiply
    12,036,111.70x = 18,043,669.95 × 7,245,706.90
  4. Step 4: Simplify right side
    12,036,111.70x = 130,739,143,858,037.66
  5. Step 5: Solve for x
    x = 130,739,143,858,037.66/12,036,111.70
  6. Step 6: Final answer
    x = 10,862,240.82

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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.