Home / 20,479,929.20-30,719,893.80-5,333,860.70

Finding the Fourth Proportional to 20,479,929.20, 30,719,893.80 and 5,333,860.70

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Solution

The fourth proportional to 20,479,929.20, 30,719,893.80 and 5,333,860.70 is: 8,000,791.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,479,929.20 : 30,719,893.80 = 5,333,860.70 : x
  2. Step 2: Convert to fraction form
    20,479,929.20/30,719,893.80 = 5,333,860.70/x
  3. Step 3: Cross multiply
    20,479,929.20x = 30,719,893.80 × 5,333,860.70
  4. Step 4: Simplify right side
    20,479,929.20x = 163,855,634,247,993.66
  5. Step 5: Solve for x
    x = 163,855,634,247,993.66/20,479,929.20
  6. Step 6: Final answer
    x = 8,000,791.05

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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.