Home / 312,670,748.34-469,006,137-214,205,359.86

Finding the Fourth Proportional to 312,670,748.34, 469,006,137 and 214,205,359.86

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Solution

The fourth proportional to 312,670,748.34, 469,006,137 and 214,205,359.86 is: 321,308,049.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,670,748.34 : 469,006,137 = 214,205,359.86 : x
  2. Step 2: Convert to fraction form
    312,670,748.34/469,006,137 = 214,205,359.86/x
  3. Step 3: Cross multiply
    312,670,748.34x = 469,006,137 × 214,205,359.86
  4. Step 4: Simplify right side
    312,670,748.34x = 100,463,628,352,633,472
  5. Step 5: Solve for x
    x = 100,463,628,352,633,472/312,670,748.34
  6. Step 6: Final answer
    x = 321,308,049.72

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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.