Home / 9,965,257.76-13,752,055.36-5,381,578.72

Finding the Fourth Proportional to 9,965,257.76, 13,752,055.36 and 5,381,578.72

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Solution

The fourth proportional to 9,965,257.76, 13,752,055.36 and 5,381,578.72 is: 7,426,578.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,965,257.76 : 13,752,055.36 = 5,381,578.72 : x
  2. Step 2: Convert to fraction form
    9,965,257.76/13,752,055.36 = 5,381,578.72/x
  3. Step 3: Cross multiply
    9,965,257.76x = 13,752,055.36 × 5,381,578.72
  4. Step 4: Simplify right side
    9,965,257.76x = 74,007,768,481,637.94
  5. Step 5: Solve for x
    x = 74,007,768,481,637.94/9,965,257.76
  6. Step 6: Final answer
    x = 7,426,578.45

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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.