Home / 139,677,144.39-209,385,439.83-47,497,891.32

Finding the Fourth Proportional to 139,677,144.39, 209,385,439.83 and 47,497,891.32

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Solution

The fourth proportional to 139,677,144.39, 209,385,439.83 and 47,497,891.32 is: 71,202,535.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,677,144.39 : 209,385,439.83 = 47,497,891.32 : x
  2. Step 2: Convert to fraction form
    139,677,144.39/209,385,439.83 = 47,497,891.32/x
  3. Step 3: Cross multiply
    139,677,144.39x = 209,385,439.83 × 47,497,891.32
  4. Step 4: Simplify right side
    139,677,144.39x = 9,945,366,865,035,740
  5. Step 5: Solve for x
    x = 9,945,366,865,035,740/139,677,144.39
  6. Step 6: Final answer
    x = 71,202,535.74

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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.