Home / 18,768,000.20-28,131,005.10-7,983,465.80

Finding the Fourth Proportional to 18,768,000.20, 28,131,005.10 and 7,983,465.80

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Solution

The fourth proportional to 18,768,000.20, 28,131,005.10 and 7,983,465.80 is: 11,966,267.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,768,000.20 : 28,131,005.10 = 7,983,465.80 : x
  2. Step 2: Convert to fraction form
    18,768,000.20/28,131,005.10 = 7,983,465.80/x
  3. Step 3: Cross multiply
    18,768,000.20x = 28,131,005.10 × 7,983,465.80
  4. Step 4: Simplify right side
    18,768,000.20x = 224,582,917,135,475.59
  5. Step 5: Solve for x
    x = 224,582,917,135,475.59/18,768,000.20
  6. Step 6: Final answer
    x = 11,966,267.84

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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.