Home / 18,379,436.80-25,363,202.88-11,507,707.84

Finding the Fourth Proportional to 18,379,436.80, 25,363,202.88 and 11,507,707.84

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Solution

The fourth proportional to 18,379,436.80, 25,363,202.88 and 11,507,707.84 is: 15,880,373.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,379,436.80 : 25,363,202.88 = 11,507,707.84 : x
  2. Step 2: Convert to fraction form
    18,379,436.80/25,363,202.88 = 11,507,707.84/x
  3. Step 3: Cross multiply
    18,379,436.80x = 25,363,202.88 × 11,507,707.84
  4. Step 4: Simplify right side
    18,379,436.80x = 291,872,328,629,686.56
  5. Step 5: Solve for x
    x = 291,872,328,629,686.56/18,379,436.80
  6. Step 6: Final answer
    x = 15,880,373.91

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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.