Home / 19,989,263.70-29,964,740.76-8,458,869.54

Finding the Fourth Proportional to 19,989,263.70, 29,964,740.76 and 8,458,869.54

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Solution

The fourth proportional to 19,989,263.70, 29,964,740.76 and 8,458,869.54 is: 12,680,198.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,989,263.70 : 29,964,740.76 = 8,458,869.54 : x
  2. Step 2: Convert to fraction form
    19,989,263.70/29,964,740.76 = 8,458,869.54/x
  3. Step 3: Cross multiply
    19,989,263.70x = 29,964,740.76 × 8,458,869.54
  4. Step 4: Simplify right side
    19,989,263.70x = 253,467,832,888,760.44
  5. Step 5: Solve for x
    x = 253,467,832,888,760.44/19,989,263.70
  6. Step 6: Final answer
    x = 12,680,198.57

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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.