Home / 7,121,429.69-9,827,582.48-3,858,244.57

Finding the Fourth Proportional to 7,121,429.69, 9,827,582.48 and 3,858,244.57

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Solution

The fourth proportional to 7,121,429.69, 9,827,582.48 and 3,858,244.57 is: 5,324,382.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,121,429.69 : 9,827,582.48 = 3,858,244.57 : x
  2. Step 2: Convert to fraction form
    7,121,429.69/9,827,582.48 = 3,858,244.57/x
  3. Step 3: Cross multiply
    7,121,429.69x = 9,827,582.48 × 3,858,244.57
  4. Step 4: Simplify right side
    7,121,429.69x = 37,917,216,774,789.86
  5. Step 5: Solve for x
    x = 37,917,216,774,789.86/7,121,429.69
  6. Step 6: Final answer
    x = 5,324,382.67

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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.