Home / 12,892,717.78-17,791,579.34-7,091,499.52

Finding the Fourth Proportional to 12,892,717.78, 17,791,579.34 and 7,091,499.52

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Solution

The fourth proportional to 12,892,717.78, 17,791,579.34 and 7,091,499.52 is: 9,786,065.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,892,717.78 : 17,791,579.34 = 7,091,499.52 : x
  2. Step 2: Convert to fraction form
    12,892,717.78/17,791,579.34 = 7,091,499.52/x
  3. Step 3: Cross multiply
    12,892,717.78x = 17,791,579.34 × 7,091,499.52
  4. Step 4: Simplify right side
    12,892,717.78x = 126,168,976,349,651.91
  5. Step 5: Solve for x
    x = 126,168,976,349,651.91/12,892,717.78
  6. Step 6: Final answer
    x = 9,786,065.17

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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.