Home / 18,438,436.80-27,657,655.20-4,975,243.20

Finding the Fourth Proportional to 18,438,436.80, 27,657,655.20 and 4,975,243.20

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Solution

The fourth proportional to 18,438,436.80, 27,657,655.20 and 4,975,243.20 is: 7,462,864.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,438,436.80 : 27,657,655.20 = 4,975,243.20 : x
  2. Step 2: Convert to fraction form
    18,438,436.80/27,657,655.20 = 4,975,243.20/x
  3. Step 3: Cross multiply
    18,438,436.80x = 27,657,655.20 × 4,975,243.20
  4. Step 4: Simplify right side
    18,438,436.80x = 137,603,560,961,744.64
  5. Step 5: Solve for x
    x = 137,603,560,961,744.64/18,438,436.80
  6. Step 6: Final answer
    x = 7,462,864.80

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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.