Home / 509,936,048.40-764,904,072.60-398,971,167.60

Finding the Fourth Proportional to 509,936,048.40, 764,904,072.60 and 398,971,167.60

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Solution

The fourth proportional to 509,936,048.40, 764,904,072.60 and 398,971,167.60 is: 598,456,751.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,936,048.40 : 764,904,072.60 = 398,971,167.60 : x
  2. Step 2: Convert to fraction form
    509,936,048.40/764,904,072.60 = 398,971,167.60/x
  3. Step 3: Cross multiply
    509,936,048.40x = 764,904,072.60 × 398,971,167.60
  4. Step 4: Simplify right side
    509,936,048.40x = 305,174,670,947,217,216
  5. Step 5: Solve for x
    x = 305,174,670,947,217,216/509,936,048.40
  6. Step 6: Final answer
    x = 598,456,751.40

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Find fourth proportional to 509,936,049.40, 764,904,074.10 and 398,971,168.60
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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.