Home / 90,668,923.62-136,003,302.33-28,420,685.68

Finding the Fourth Proportional to 90,668,923.62, 136,003,302.33 and 28,420,685.68

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Solution

The fourth proportional to 90,668,923.62, 136,003,302.33 and 28,420,685.68 is: 42,631,002.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,668,923.62 : 136,003,302.33 = 28,420,685.68 : x
  2. Step 2: Convert to fraction form
    90,668,923.62/136,003,302.33 = 28,420,685.68/x
  3. Step 3: Cross multiply
    90,668,923.62x = 136,003,302.33 × 28,420,685.68
  4. Step 4: Simplify right side
    90,668,923.62x = 3,865,307,106,962,942
  5. Step 5: Solve for x
    x = 3,865,307,106,962,942/90,668,923.62
  6. Step 6: Final answer
    x = 42,631,002.47

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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.