Home / 210,308,147.80-315,180,234.21-163,677,936.78

Finding the Fourth Proportional to 210,308,147.80, 315,180,234.21 and 163,677,936.78

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Solution

The fourth proportional to 210,308,147.80, 315,180,234.21 and 163,677,936.78 is: 245,297,440.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,308,147.80 : 315,180,234.21 = 163,677,936.78 : x
  2. Step 2: Convert to fraction form
    210,308,147.80/315,180,234.21 = 163,677,936.78/x
  3. Step 3: Cross multiply
    210,308,147.80x = 315,180,234.21 × 163,677,936.78
  4. Step 4: Simplify right side
    210,308,147.80x = 51,588,050,449,329,968
  5. Step 5: Solve for x
    x = 51,588,050,449,329,968/210,308,147.80
  6. Step 6: Final answer
    x = 245,297,440.87

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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.