Home / 13,608,849.40-20,415,023.70-6,788,908.60

Finding the Fourth Proportional to 13,608,849.40, 20,415,023.70 and 6,788,908.60

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Solution

The fourth proportional to 13,608,849.40, 20,415,023.70 and 6,788,908.60 is: 10,184,235.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,608,849.40 : 20,415,023.70 = 6,788,908.60 : x
  2. Step 2: Convert to fraction form
    13,608,849.40/20,415,023.70 = 6,788,908.60/x
  3. Step 3: Cross multiply
    13,608,849.40x = 20,415,023.70 × 6,788,908.60
  4. Step 4: Simplify right side
    13,608,849.40x = 138,595,729,966,133.81
  5. Step 5: Solve for x
    x = 138,595,729,966,133.81/13,608,849.40
  6. Step 6: Final answer
    x = 10,184,235.71

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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.