Home / 139,203,415.68-208,844,217-40,837,443.36

Finding the Fourth Proportional to 139,203,415.68, 208,844,217 and 40,837,443.36

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Solution

The fourth proportional to 139,203,415.68, 208,844,217 and 40,837,443.36 is: 61,267,633.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,203,415.68 : 208,844,217 = 40,837,443.36 : x
  2. Step 2: Convert to fraction form
    139,203,415.68/208,844,217 = 40,837,443.36/x
  3. Step 3: Cross multiply
    139,203,415.68x = 208,844,217 × 40,837,443.36
  4. Step 4: Simplify right side
    139,203,415.68x = 8,528,663,882,801,049
  5. Step 5: Solve for x
    x = 8,528,663,882,801,049/139,203,415.68
  6. Step 6: Final answer
    x = 61,267,633.71

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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.