Home / 218,428,311.42-301,429,078.11-119,309,042.94

Finding the Fourth Proportional to 218,428,311.42, 301,429,078.11 and 119,309,042.94

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Solution

The fourth proportional to 218,428,311.42, 301,429,078.11 and 119,309,042.94 is: 164,645,391.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,428,311.42 : 301,429,078.11 = 119,309,042.94 : x
  2. Step 2: Convert to fraction form
    218,428,311.42/301,429,078.11 = 119,309,042.94/x
  3. Step 3: Cross multiply
    218,428,311.42x = 301,429,078.11 × 119,309,042.94
  4. Step 4: Simplify right side
    218,428,311.42x = 35,963,214,823,590,604
  5. Step 5: Solve for x
    x = 35,963,214,823,590,604/218,428,311.42
  6. Step 6: Final answer
    x = 164,645,391.39

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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.