Home / 13,239,237.88-18,271,990.02-7,438,468.60

Finding the Fourth Proportional to 13,239,237.88, 18,271,990.02 and 7,438,468.60

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Solution

The fourth proportional to 13,239,237.88, 18,271,990.02 and 7,438,468.60 is: 10,266,121.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,239,237.88 : 18,271,990.02 = 7,438,468.60 : x
  2. Step 2: Convert to fraction form
    13,239,237.88/18,271,990.02 = 7,438,468.60/x
  3. Step 3: Cross multiply
    13,239,237.88x = 18,271,990.02 × 7,438,468.60
  4. Step 4: Simplify right side
    13,239,237.88x = 135,915,624,023,283.36
  5. Step 5: Solve for x
    x = 135,915,624,023,283.36/13,239,237.88
  6. Step 6: Final answer
    x = 10,266,121.45

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.