Home / 55,215,384.88-76,200,640.20-30,435,515.84

Finding the Fourth Proportional to 55,215,384.88, 76,200,640.20 and 30,435,515.84

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Solution

The fourth proportional to 55,215,384.88, 76,200,640.20 and 30,435,515.84 is: 42,002,890.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,215,384.88 : 76,200,640.20 = 30,435,515.84 : x
  2. Step 2: Convert to fraction form
    55,215,384.88/76,200,640.20 = 30,435,515.84/x
  3. Step 3: Cross multiply
    55,215,384.88x = 76,200,640.20 × 30,435,515.84
  4. Step 4: Simplify right side
    55,215,384.88x = 2,319,205,791,825,241
  5. Step 5: Solve for x
    x = 2,319,205,791,825,241/55,215,384.88
  6. Step 6: Final answer
    x = 42,002,890.99

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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.