Home / 208,607,288.20-312,910,932.30-154,187,729.80

Finding the Fourth Proportional to 208,607,288.20, 312,910,932.30 and 154,187,729.80

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Solution

The fourth proportional to 208,607,288.20, 312,910,932.30 and 154,187,729.80 is: 231,281,594.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,607,288.20 : 312,910,932.30 = 154,187,729.80 : x
  2. Step 2: Convert to fraction form
    208,607,288.20/312,910,932.30 = 154,187,729.80/x
  3. Step 3: Cross multiply
    208,607,288.20x = 312,910,932.30 × 154,187,729.80
  4. Step 4: Simplify right side
    208,607,288.20x = 48,247,026,280,938,496
  5. Step 5: Solve for x
    x = 48,247,026,280,938,496/208,607,288.20
  6. Step 6: Final answer
    x = 231,281,594.70

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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.