Home / 12,960,579.60-17,885,253.24-7,159,236.48

Finding the Fourth Proportional to 12,960,579.60, 17,885,253.24 and 7,159,236.48

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Solution

The fourth proportional to 12,960,579.60, 17,885,253.24 and 7,159,236.48 is: 9,879,554.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,960,579.60 : 17,885,253.24 = 7,159,236.48 : x
  2. Step 2: Convert to fraction form
    12,960,579.60/17,885,253.24 = 7,159,236.48/x
  3. Step 3: Cross multiply
    12,960,579.60x = 17,885,253.24 × 7,159,236.48
  4. Step 4: Simplify right side
    12,960,579.60x = 128,044,757,449,846.19
  5. Step 5: Solve for x
    x = 128,044,757,449,846.19/12,960,579.60
  6. Step 6: Final answer
    x = 9,879,554.88

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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.