Home / 7,238,750.40-10,858,125.60-5,538,139.20

Finding the Fourth Proportional to 7,238,750.40, 10,858,125.60 and 5,538,139.20

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Solution

The fourth proportional to 7,238,750.40, 10,858,125.60 and 5,538,139.20 is: 8,307,208.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,238,750.40 : 10,858,125.60 = 5,538,139.20 : x
  2. Step 2: Convert to fraction form
    7,238,750.40/10,858,125.60 = 5,538,139.20/x
  3. Step 3: Cross multiply
    7,238,750.40x = 10,858,125.60 × 5,538,139.20
  4. Step 4: Simplify right side
    7,238,750.40x = 60,133,811,023,883.52
  5. Step 5: Solve for x
    x = 60,133,811,023,883.52/7,238,750.40
  6. Step 6: Final answer
    x = 8,307,208.80

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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.