Home / 312,870,850.34-469,324,210-82,833,957.50

Finding the Fourth Proportional to 312,870,850.34, 469,324,210 and 82,833,957.50

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Solution

The fourth proportional to 312,870,850.34, 469,324,210 and 82,833,957.50 is: 124,255,684.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,870,850.34 : 469,324,210 = 82,833,957.50 : x
  2. Step 2: Convert to fraction form
    312,870,850.34/469,324,210 = 82,833,957.50/x
  3. Step 3: Cross multiply
    312,870,850.34x = 469,324,210 × 82,833,957.50
  4. Step 4: Simplify right side
    312,870,850.34x = 38,875,981,664,861,072
  5. Step 5: Solve for x
    x = 38,875,981,664,861,072/312,870,850.34
  6. Step 6: Final answer
    x = 124,255,684.49

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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.