Home / 395,216,057.81-545,401,409.04-219,006,995.82

Finding the Fourth Proportional to 395,216,057.81, 545,401,409.04 and 219,006,995.82

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Solution

The fourth proportional to 395,216,057.81, 545,401,409.04 and 219,006,995.82 is: 302,231,454.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,216,057.81 : 545,401,409.04 = 219,006,995.82 : x
  2. Step 2: Convert to fraction form
    395,216,057.81/545,401,409.04 = 219,006,995.82/x
  3. Step 3: Cross multiply
    395,216,057.81x = 545,401,409.04 × 219,006,995.82
  4. Step 4: Simplify right side
    395,216,057.81x = 119,446,724,107,794,672
  5. Step 5: Solve for x
    x = 119,446,724,107,794,672/395,216,057.81
  6. Step 6: Final answer
    x = 302,231,454.79

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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.