Home / 396,576,007.40-594,864,011.10-287,736,890.60

Finding the Fourth Proportional to 396,576,007.40, 594,864,011.10 and 287,736,890.60

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Solution

The fourth proportional to 396,576,007.40, 594,864,011.10 and 287,736,890.60 is: 431,605,335.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,576,007.40 : 594,864,011.10 = 287,736,890.60 : x
  2. Step 2: Convert to fraction form
    396,576,007.40/594,864,011.10 = 287,736,890.60/x
  3. Step 3: Cross multiply
    396,576,007.40x = 594,864,011.10 × 287,736,890.60
  4. Step 4: Simplify right side
    396,576,007.40x = 171,164,320,883,757,920
  5. Step 5: Solve for x
    x = 171,164,320,883,757,920/396,576,007.40
  6. Step 6: Final answer
    x = 431,605,335.90

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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.