Home / 90,668,922.62-136,003,300.83-28,420,684.68

Finding the Fourth Proportional to 90,668,922.62, 136,003,300.83 and 28,420,684.68

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Solution

The fourth proportional to 90,668,922.62, 136,003,300.83 and 28,420,684.68 is: 42,631,000.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,668,922.62 : 136,003,300.83 = 28,420,684.68 : x
  2. Step 2: Convert to fraction form
    90,668,922.62/136,003,300.83 = 28,420,684.68/x
  3. Step 3: Cross multiply
    90,668,922.62x = 136,003,300.83 × 28,420,684.68
  4. Step 4: Simplify right side
    90,668,922.62x = 3,865,306,928,838,625
  5. Step 5: Solve for x
    x = 3,865,306,928,838,625/90,668,922.62
  6. Step 6: Final answer
    x = 42,631,000.98

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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.