Home / 13,329,009.49-18,394,058.15-7,448,643.69

Finding the Fourth Proportional to 13,329,009.49, 18,394,058.15 and 7,448,643.69

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Solution

The fourth proportional to 13,329,009.49, 18,394,058.15 and 7,448,643.69 is: 10,279,142.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,329,009.49 : 18,394,058.15 = 7,448,643.69 : x
  2. Step 2: Convert to fraction form
    13,329,009.49/18,394,058.15 = 7,448,643.69/x
  3. Step 3: Cross multiply
    13,329,009.49x = 18,394,058.15 × 7,448,643.69
  4. Step 4: Simplify right side
    13,329,009.49x = 137,010,785,172,490.56
  5. Step 5: Solve for x
    x = 137,010,785,172,490.56/13,329,009.49
  6. Step 6: Final answer
    x = 10,279,142.29

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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.