Home / 13,138,671.52-18,128,736.48-7,336,560.52

Finding the Fourth Proportional to 13,138,671.52, 18,128,736.48 and 7,336,560.52

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Solution

The fourth proportional to 13,138,671.52, 18,128,736.48 and 7,336,560.52 is: 10,122,984.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,138,671.52 : 18,128,736.48 = 7,336,560.52 : x
  2. Step 2: Convert to fraction form
    13,138,671.52/18,128,736.48 = 7,336,560.52/x
  3. Step 3: Cross multiply
    13,138,671.52x = 18,128,736.48 × 7,336,560.52
  4. Step 4: Simplify right side
    13,138,671.52x = 133,002,572,336,651.77
  5. Step 5: Solve for x
    x = 133,002,572,336,651.77/13,138,671.52
  6. Step 6: Final answer
    x = 10,122,984.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.