Home / 13,643,872.79-18,828,250.94-7,448,617.77

Finding the Fourth Proportional to 13,643,872.79, 18,828,250.94 and 7,448,617.77

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Solution

The fourth proportional to 13,643,872.79, 18,828,250.94 and 7,448,617.77 is: 10,278,932.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,643,872.79 : 18,828,250.94 = 7,448,617.77 : x
  2. Step 2: Convert to fraction form
    13,643,872.79/18,828,250.94 = 7,448,617.77/x
  3. Step 3: Cross multiply
    13,643,872.79x = 18,828,250.94 × 7,448,617.77
  4. Step 4: Simplify right side
    13,643,872.79x = 140,244,444,492,460.09
  5. Step 5: Solve for x
    x = 140,244,444,492,460.09/13,643,872.79
  6. Step 6: Final answer
    x = 10,278,932.29

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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.