Home / 9,378,678.80-12,942,298.34-5,192,550.06

Finding the Fourth Proportional to 9,378,678.80, 12,942,298.34 and 5,192,550.06

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Solution

The fourth proportional to 9,378,678.80, 12,942,298.34 and 5,192,550.06 is: 7,165,564.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,378,678.80 : 12,942,298.34 = 5,192,550.06 : x
  2. Step 2: Convert to fraction form
    9,378,678.80/12,942,298.34 = 5,192,550.06/x
  3. Step 3: Cross multiply
    9,378,678.80x = 12,942,298.34 × 5,192,550.06
  4. Step 4: Simplify right side
    9,378,678.80x = 67,203,532,021,904.89
  5. Step 5: Solve for x
    x = 67,203,532,021,904.89/9,378,678.80
  6. Step 6: Final answer
    x = 7,165,564.94

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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.