Home / 472,393,007.70-708,589,511.55-429,310,857.30

Finding the Fourth Proportional to 472,393,007.70, 708,589,511.55 and 429,310,857.30

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Solution

The fourth proportional to 472,393,007.70, 708,589,511.55 and 429,310,857.30 is: 643,966,285.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,393,007.70 : 708,589,511.55 = 429,310,857.30 : x
  2. Step 2: Convert to fraction form
    472,393,007.70/708,589,511.55 = 429,310,857.30/x
  3. Step 3: Cross multiply
    472,393,007.70x = 708,589,511.55 × 429,310,857.30
  4. Step 4: Simplify right side
    472,393,007.70x = 304,205,170,677,318,720
  5. Step 5: Solve for x
    x = 304,205,170,677,318,720/472,393,007.70
  6. Step 6: Final answer
    x = 643,966,285.95

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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.