Home / 395,287,000.77-545,496,111.86-219,086,371.56

Finding the Fourth Proportional to 395,287,000.77, 545,496,111.86 and 219,086,371.56

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Solution

The fourth proportional to 395,287,000.77, 545,496,111.86 and 219,086,371.56 is: 302,339,220.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,287,000.77 : 545,496,111.86 = 219,086,371.56 : x
  2. Step 2: Convert to fraction form
    395,287,000.77/545,496,111.86 = 219,086,371.56/x
  3. Step 3: Cross multiply
    395,287,000.77x = 545,496,111.86 × 219,086,371.56
  4. Step 4: Simplify right side
    395,287,000.77x = 119,510,763,846,399,856
  5. Step 5: Solve for x
    x = 119,510,763,846,399,856/395,287,000.77
  6. Step 6: Final answer
    x = 302,339,220.90

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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.