Home / 312,068,569.65-468,169,939.41-90,743,755.87

Finding the Fourth Proportional to 312,068,569.65, 468,169,939.41 and 90,743,755.87

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Solution

The fourth proportional to 312,068,569.65, 468,169,939.41 and 90,743,755.87 is: 136,135,140.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,068,569.65 : 468,169,939.41 = 90,743,755.87 : x
  2. Step 2: Convert to fraction form
    312,068,569.65/468,169,939.41 = 90,743,755.87/x
  3. Step 3: Cross multiply
    312,068,569.65x = 468,169,939.41 × 90,743,755.87
  4. Step 4: Simplify right side
    312,068,569.65x = 42,483,498,687,493,736
  5. Step 5: Solve for x
    x = 42,483,498,687,493,736/312,068,569.65
  6. Step 6: Final answer
    x = 136,135,140.86

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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.