Home / 20,716,821.80-31,072,511.10-6,341,330.60

Finding the Fourth Proportional to 20,716,821.80, 31,072,511.10 and 6,341,330.60

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Solution

The fourth proportional to 20,716,821.80, 31,072,511.10 and 6,341,330.60 is: 9,511,162.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,716,821.80 : 31,072,511.10 = 6,341,330.60 : x
  2. Step 2: Convert to fraction form
    20,716,821.80/31,072,511.10 = 6,341,330.60/x
  3. Step 3: Cross multiply
    20,716,821.80x = 31,072,511.10 × 6,341,330.60
  4. Step 4: Simplify right side
    20,716,821.80x = 197,041,065,457,269.66
  5. Step 5: Solve for x
    x = 197,041,065,457,269.66/20,716,821.80
  6. Step 6: Final answer
    x = 9,511,162.83

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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.