Home / 388,099,505.43-581,221,199.79-223,839,270.50

Finding the Fourth Proportional to 388,099,505.43, 581,221,199.79 and 223,839,270.50

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Solution

The fourth proportional to 388,099,505.43, 581,221,199.79 and 223,839,270.50 is: 335,223,641.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,099,505.43 : 581,221,199.79 = 223,839,270.50 : x
  2. Step 2: Convert to fraction form
    388,099,505.43/581,221,199.79 = 223,839,270.50/x
  3. Step 3: Cross multiply
    388,099,505.43x = 581,221,199.79 × 223,839,270.50
  4. Step 4: Simplify right side
    388,099,505.43x = 130,100,129,357,222,240
  5. Step 5: Solve for x
    x = 130,100,129,357,222,240/388,099,505.43
  6. Step 6: Final answer
    x = 335,223,641.20

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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.