Home / 13,262,420.43-18,302,141.04-7,381,928.03

Finding the Fourth Proportional to 13,262,420.43, 18,302,141.04 and 7,381,928.03

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Solution

The fourth proportional to 13,262,420.43, 18,302,141.04 and 7,381,928.03 is: 10,187,061.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,262,420.43 : 18,302,141.04 = 7,381,928.03 : x
  2. Step 2: Convert to fraction form
    13,262,420.43/18,302,141.04 = 7,381,928.03/x
  3. Step 3: Cross multiply
    13,262,420.43x = 18,302,141.04 × 7,381,928.03
  4. Step 4: Simplify right side
    13,262,420.43x = 135,105,087,874,519.78
  5. Step 5: Solve for x
    x = 135,105,087,874,519.78/13,262,420.43
  6. Step 6: Final answer
    x = 10,187,061.15

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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.