Home / 12,938,740.80-19,373,896.80-10,367,995.20

Finding the Fourth Proportional to 12,938,740.80, 19,373,896.80 and 10,367,995.20

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Solution

The fourth proportional to 12,938,740.80, 19,373,896.80 and 10,367,995.20 is: 15,524,576.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,938,740.80 : 19,373,896.80 = 10,367,995.20 : x
  2. Step 2: Convert to fraction form
    12,938,740.80/19,373,896.80 = 10,367,995.20/x
  3. Step 3: Cross multiply
    12,938,740.80x = 19,373,896.80 × 10,367,995.20
  4. Step 4: Simplify right side
    12,938,740.80x = 200,868,469,027,695.34
  5. Step 5: Solve for x
    x = 200,868,469,027,695.34/12,938,740.80
  6. Step 6: Final answer
    x = 15,524,576.32

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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.