Home / 9,965,120.71-13,751,866.37-5,381,441.68

Finding the Fourth Proportional to 9,965,120.71, 13,751,866.37 and 5,381,441.68

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Solution

The fourth proportional to 9,965,120.71, 13,751,866.37 and 5,381,441.68 is: 7,426,389.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,965,120.71 : 13,751,866.37 = 5,381,441.68 : x
  2. Step 2: Convert to fraction form
    9,965,120.71/13,751,866.37 = 5,381,441.68/x
  3. Step 3: Cross multiply
    9,965,120.71x = 13,751,866.37 × 5,381,441.68
  4. Step 4: Simplify right side
    9,965,120.71x = 74,004,866,765,641.77
  5. Step 5: Solve for x
    x = 74,004,866,765,641.77/9,965,120.71
  6. Step 6: Final answer
    x = 7,426,389.40

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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.