Home / 12,455,976.75-18,687,117.95-3,820,516.53

Finding the Fourth Proportional to 12,455,976.75, 18,687,117.95 and 3,820,516.53

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Solution

The fourth proportional to 12,455,976.75, 18,687,117.95 and 3,820,516.53 is: 5,731,741.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,455,976.75 : 18,687,117.95 = 3,820,516.53 : x
  2. Step 2: Convert to fraction form
    12,455,976.75/18,687,117.95 = 3,820,516.53/x
  3. Step 3: Cross multiply
    12,455,976.75x = 18,687,117.95 × 3,820,516.53
  4. Step 4: Simplify right side
    12,455,976.75x = 71,394,443,072,752.52
  5. Step 5: Solve for x
    x = 71,394,443,072,752.52/12,455,976.75
  6. Step 6: Final answer
    x = 5,731,741.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.