Home / 20,809,767.40-31,214,651.10-5,663,674.60

Finding the Fourth Proportional to 20,809,767.40, 31,214,651.10 and 5,663,674.60

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Solution

The fourth proportional to 20,809,767.40, 31,214,651.10 and 5,663,674.60 is: 8,495,511.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,809,767.40 : 31,214,651.10 = 5,663,674.60 : x
  2. Step 2: Convert to fraction form
    20,809,767.40/31,214,651.10 = 5,663,674.60/x
  3. Step 3: Cross multiply
    20,809,767.40x = 31,214,651.10 × 5,663,674.60
  4. Step 4: Simplify right side
    20,809,767.40x = 176,789,626,582,932.06
  5. Step 5: Solve for x
    x = 176,789,626,582,932.06/20,809,767.40
  6. Step 6: Final answer
    x = 8,495,511.90

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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.