Home / 431,200,817.70-646,801,226.55-120,307,832.70

Finding the Fourth Proportional to 431,200,817.70, 646,801,226.55 and 120,307,832.70

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Solution

The fourth proportional to 431,200,817.70, 646,801,226.55 and 120,307,832.70 is: 180,461,749.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,200,817.70 : 646,801,226.55 = 120,307,832.70 : x
  2. Step 2: Convert to fraction form
    431,200,817.70/646,801,226.55 = 120,307,832.70/x
  3. Step 3: Cross multiply
    431,200,817.70x = 646,801,226.55 × 120,307,832.70
  4. Step 4: Simplify right side
    431,200,817.70x = 77,815,253,753,932,192
  5. Step 5: Solve for x
    x = 77,815,253,753,932,192/431,200,817.70
  6. Step 6: Final answer
    x = 180,461,749.05

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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.