Home / 18,438,669.80-27,658,004.70-4,975,476.20

Finding the Fourth Proportional to 18,438,669.80, 27,658,004.70 and 4,975,476.20

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Solution

The fourth proportional to 18,438,669.80, 27,658,004.70 and 4,975,476.20 is: 7,463,214.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,438,669.80 : 27,658,004.70 = 4,975,476.20 : x
  2. Step 2: Convert to fraction form
    18,438,669.80/27,658,004.70 = 4,975,476.20/x
  3. Step 3: Cross multiply
    18,438,669.80x = 27,658,004.70 × 4,975,476.20
  4. Step 4: Simplify right side
    18,438,669.80x = 137,611,744,124,338.14
  5. Step 5: Solve for x
    x = 137,611,744,124,338.14/18,438,669.80
  6. Step 6: Final answer
    x = 7,463,214.30

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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.