Home / 55,215,369.52-76,200,619.09-30,435,500.57

Finding the Fourth Proportional to 55,215,369.52, 76,200,619.09 and 30,435,500.57

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Solution

The fourth proportional to 55,215,369.52, 76,200,619.09 and 30,435,500.57 is: 42,002,869.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,215,369.52 : 76,200,619.09 = 30,435,500.57 : x
  2. Step 2: Convert to fraction form
    55,215,369.52/76,200,619.09 = 30,435,500.57/x
  3. Step 3: Cross multiply
    55,215,369.52x = 76,200,619.09 × 30,435,500.57
  4. Step 4: Simplify right side
    55,215,369.52x = 2,319,203,985,433,607.50
  5. Step 5: Solve for x
    x = 2,319,203,985,433,607.50/55,215,369.52
  6. Step 6: Final answer
    x = 42,002,869.95

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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.