Home / 56,770,996.78-78,344,007.08-30,665,514.86

Finding the Fourth Proportional to 56,770,996.78, 78,344,007.08 and 30,665,514.86

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Solution

The fourth proportional to 56,770,996.78, 78,344,007.08 and 30,665,514.86 is: 42,318,427.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,770,996.78 : 78,344,007.08 = 30,665,514.86 : x
  2. Step 2: Convert to fraction form
    56,770,996.78/78,344,007.08 = 30,665,514.86/x
  3. Step 3: Cross multiply
    56,770,996.78x = 78,344,007.08 × 30,665,514.86
  4. Step 4: Simplify right side
    56,770,996.78x = 2,402,459,313,346,218
  5. Step 5: Solve for x
    x = 2,402,459,313,346,218/56,770,996.78
  6. Step 6: Final answer
    x = 42,318,427.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.