Home / 20,839,346.58-31,256,182.17-5,485,350.45

Finding the Fourth Proportional to 20,839,346.58, 31,256,182.17 and 5,485,350.45

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Solution

The fourth proportional to 20,839,346.58, 31,256,182.17 and 5,485,350.45 is: 8,227,278.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,839,346.58 : 31,256,182.17 = 5,485,350.45 : x
  2. Step 2: Convert to fraction form
    20,839,346.58/31,256,182.17 = 5,485,350.45/x
  3. Step 3: Cross multiply
    20,839,346.58x = 31,256,182.17 × 5,485,350.45
  4. Step 4: Simplify right side
    20,839,346.58x = 171,451,112,931,491.50
  5. Step 5: Solve for x
    x = 171,451,112,931,491.50/20,839,346.58
  6. Step 6: Final answer
    x = 8,227,278.73

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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.