Home / 12,142,383.52-18,211,579.79-4,359,686.71

Finding the Fourth Proportional to 12,142,383.52, 18,211,579.79 and 4,359,686.71

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Solution

The fourth proportional to 12,142,383.52, 18,211,579.79 and 4,359,686.71 is: 6,538,813.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,142,383.52 : 18,211,579.79 = 4,359,686.71 : x
  2. Step 2: Convert to fraction form
    12,142,383.52/18,211,579.79 = 4,359,686.71/x
  3. Step 3: Cross multiply
    12,142,383.52x = 18,211,579.79 × 4,359,686.71
  4. Step 4: Simplify right side
    12,142,383.52x = 79,396,782,343,937.86
  5. Step 5: Solve for x
    x = 79,396,782,343,937.86/12,142,383.52
  6. Step 6: Final answer
    x = 6,538,813.59

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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.