Home / 13,578,947.09-18,739,170.27-7,384,116.50

Finding the Fourth Proportional to 13,578,947.09, 18,739,170.27 and 7,384,116.50

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Solution

The fourth proportional to 13,578,947.09, 18,739,170.27 and 7,384,116.50 is: 10,190,202.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,578,947.09 : 18,739,170.27 = 7,384,116.50 : x
  2. Step 2: Convert to fraction form
    13,578,947.09/18,739,170.27 = 7,384,116.50/x
  3. Step 3: Cross multiply
    13,578,947.09x = 18,739,170.27 × 7,384,116.50
  4. Step 4: Simplify right side
    13,578,947.09x = 138,372,216,293,320.61
  5. Step 5: Solve for x
    x = 138,372,216,293,320.61/13,578,947.09
  6. Step 6: Final answer
    x = 10,190,202.19

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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.