Home / 393,740,430.28-543,345,249.18-226,464,061.12

Finding the Fourth Proportional to 393,740,430.28, 543,345,249.18 and 226,464,061.12

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Solution

The fourth proportional to 393,740,430.28, 543,345,249.18 and 226,464,061.12 is: 312,510,888.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,740,430.28 : 543,345,249.18 = 226,464,061.12 : x
  2. Step 2: Convert to fraction form
    393,740,430.28/543,345,249.18 = 226,464,061.12/x
  3. Step 3: Cross multiply
    393,740,430.28x = 543,345,249.18 × 226,464,061.12
  4. Step 4: Simplify right side
    393,740,430.28x = 123,048,171,719,561,136
  5. Step 5: Solve for x
    x = 123,048,171,719,561,136/393,740,430.28
  6. Step 6: Final answer
    x = 312,510,888.54

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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.