Home / 208,607,228.20-312,910,842.30-154,187,669.80

Finding the Fourth Proportional to 208,607,228.20, 312,910,842.30 and 154,187,669.80

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Solution

The fourth proportional to 208,607,228.20, 312,910,842.30 and 154,187,669.80 is: 231,281,504.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,607,228.20 : 312,910,842.30 = 154,187,669.80 : x
  2. Step 2: Convert to fraction form
    208,607,228.20/312,910,842.30 = 154,187,669.80/x
  3. Step 3: Cross multiply
    208,607,228.20x = 312,910,842.30 × 154,187,669.80
  4. Step 4: Simplify right side
    208,607,228.20x = 48,246,993,629,392,280
  5. Step 5: Solve for x
    x = 48,246,993,629,392,280/208,607,228.20
  6. Step 6: Final answer
    x = 231,281,504.70

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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.