Home / 312,068,568.65-468,169,937.91-90,743,754.87

Finding the Fourth Proportional to 312,068,568.65, 468,169,937.91 and 90,743,754.87

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Solution

The fourth proportional to 312,068,568.65, 468,169,937.91 and 90,743,754.87 is: 136,135,139.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,068,568.65 : 468,169,937.91 = 90,743,754.87 : x
  2. Step 2: Convert to fraction form
    312,068,568.65/468,169,937.91 = 90,743,754.87/x
  3. Step 3: Cross multiply
    312,068,568.65x = 468,169,937.91 × 90,743,754.87
  4. Step 4: Simplify right side
    312,068,568.65x = 42,483,498,083,208,168
  5. Step 5: Solve for x
    x = 42,483,498,083,208,168/312,068,568.65
  6. Step 6: Final answer
    x = 136,135,139.36

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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.