Home / 312,996,131.56-469,343,187.42-131,194,495.72

Finding the Fourth Proportional to 312,996,131.56, 469,343,187.42 and 131,194,495.72

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Solution

The fourth proportional to 312,996,131.56, 469,343,187.42 and 131,194,495.72 is: 196,728,446.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,996,131.56 : 469,343,187.42 = 131,194,495.72 : x
  2. Step 2: Convert to fraction form
    312,996,131.56/469,343,187.42 = 131,194,495.72/x
  3. Step 3: Cross multiply
    312,996,131.56x = 469,343,187.42 × 131,194,495.72
  4. Step 4: Simplify right side
    312,996,131.56x = 61,575,242,793,184,352
  5. Step 5: Solve for x
    x = 61,575,242,793,184,352/312,996,131.56
  6. Step 6: Final answer
    x = 196,728,446.73

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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.