Home / 13,218,989.49-19,805,026.14-5,525,675.22

Finding the Fourth Proportional to 13,218,989.49, 19,805,026.14 and 5,525,675.22

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Solution

The fourth proportional to 13,218,989.49, 19,805,026.14 and 5,525,675.22 is: 8,278,707.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,218,989.49 : 19,805,026.14 = 5,525,675.22 : x
  2. Step 2: Convert to fraction form
    13,218,989.49/19,805,026.14 = 5,525,675.22/x
  3. Step 3: Cross multiply
    13,218,989.49x = 19,805,026.14 × 5,525,675.22
  4. Step 4: Simplify right side
    13,218,989.49x = 109,436,142,173,250.25
  5. Step 5: Solve for x
    x = 109,436,142,173,250.25/13,218,989.49
  6. Step 6: Final answer
    x = 8,278,707.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.