Home / 9,965,117.21-13,751,861.54-5,381,438.18

Finding the Fourth Proportional to 9,965,117.21, 13,751,861.54 and 5,381,438.18

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Solution

The fourth proportional to 9,965,117.21, 13,751,861.54 and 5,381,438.18 is: 7,426,384.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,965,117.21 : 13,751,861.54 = 5,381,438.18 : x
  2. Step 2: Convert to fraction form
    9,965,117.21/13,751,861.54 = 5,381,438.18/x
  3. Step 3: Cross multiply
    9,965,117.21x = 13,751,861.54 × 5,381,438.18
  4. Step 4: Simplify right side
    9,965,117.21x = 74,004,792,641,763.09
  5. Step 5: Solve for x
    x = 74,004,792,641,763.09/9,965,117.21
  6. Step 6: Final answer
    x = 7,426,384.57

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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.