Home / 208,607,246.70-312,910,870.05-154,187,688.30

Finding the Fourth Proportional to 208,607,246.70, 312,910,870.05 and 154,187,688.30

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Solution

The fourth proportional to 208,607,246.70, 312,910,870.05 and 154,187,688.30 is: 231,281,532.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,607,246.70 : 312,910,870.05 = 154,187,688.30 : x
  2. Step 2: Convert to fraction form
    208,607,246.70/312,910,870.05 = 154,187,688.30/x
  3. Step 3: Cross multiply
    208,607,246.70x = 312,910,870.05 × 154,187,688.30
  4. Step 4: Simplify right side
    208,607,246.70x = 48,247,003,696,951,208
  5. Step 5: Solve for x
    x = 48,247,003,696,951,208/208,607,246.70
  6. Step 6: Final answer
    x = 231,281,532.45

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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.