Home / 12,437,122.56-18,656,352.72-3,918,125.76

Finding the Fourth Proportional to 12,437,122.56, 18,656,352.72 and 3,918,125.76

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Solution

The fourth proportional to 12,437,122.56, 18,656,352.72 and 3,918,125.76 is: 5,877,399.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,437,122.56 : 18,656,352.72 = 3,918,125.76 : x
  2. Step 2: Convert to fraction form
    12,437,122.56/18,656,352.72 = 3,918,125.76/x
  3. Step 3: Cross multiply
    12,437,122.56x = 18,656,352.72 × 3,918,125.76
  4. Step 4: Simplify right side
    12,437,122.56x = 73,097,936,179,878.06
  5. Step 5: Solve for x
    x = 73,097,936,179,878.06/12,437,122.56
  6. Step 6: Final answer
    x = 5,877,399.36

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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.