Home / 538,447,638.98-743,057,743.22-290,928,993.23

Finding the Fourth Proportional to 538,447,638.98, 743,057,743.22 and 290,928,993.23

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Solution

The fourth proportional to 538,447,638.98, 743,057,743.22 and 290,928,993.23 is: 401,482,011.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,447,638.98 : 743,057,743.22 = 290,928,993.23 : x
  2. Step 2: Convert to fraction form
    538,447,638.98/743,057,743.22 = 290,928,993.23/x
  3. Step 3: Cross multiply
    538,447,638.98x = 743,057,743.22 × 290,928,993.23
  4. Step 4: Simplify right side
    538,447,638.98x = 216,177,041,147,477,792
  5. Step 5: Solve for x
    x = 216,177,041,147,477,792/538,447,638.98
  6. Step 6: Final answer
    x = 401,482,011.43

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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.