Home / 208,861,581.24-288,166,126.50-125,199,185.76

Finding the Fourth Proportional to 208,861,581.24, 288,166,126.50 and 125,199,185.76

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Solution

The fourth proportional to 208,861,581.24, 288,166,126.50 and 125,199,185.76 is: 172,737,198.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,861,581.24 : 288,166,126.50 = 125,199,185.76 : x
  2. Step 2: Convert to fraction form
    208,861,581.24/288,166,126.50 = 125,199,185.76/x
  3. Step 3: Cross multiply
    208,861,581.24x = 288,166,126.50 × 125,199,185.76
  4. Step 4: Simplify right side
    208,861,581.24x = 36,078,164,401,413,160
  5. Step 5: Solve for x
    x = 36,078,164,401,413,160/208,861,581.24
  6. Step 6: Final answer
    x = 172,737,198.42

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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.