Home / 431,757,191.85-647,595,634.28-120,892,944.21

Finding the Fourth Proportional to 431,757,191.85, 647,595,634.28 and 120,892,944.21

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Solution

The fourth proportional to 431,757,191.85, 647,595,634.28 and 120,892,944.21 is: 181,328,173.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,757,191.85 : 647,595,634.28 = 120,892,944.21 : x
  2. Step 2: Convert to fraction form
    431,757,191.85/647,595,634.28 = 120,892,944.21/x
  3. Step 3: Cross multiply
    431,757,191.85x = 647,595,634.28 × 120,892,944.21
  4. Step 4: Simplify right side
    431,757,191.85x = 78,289,742,885,047,136
  5. Step 5: Solve for x
    x = 78,289,742,885,047,136/431,757,191.85
  6. Step 6: Final answer
    x = 181,328,173.25

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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.