Home / 77,677,928.66-116,532,242.30-28,494,238.65

Finding the Fourth Proportional to 77,677,928.66, 116,532,242.30 and 28,494,238.65

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Solution

The fourth proportional to 77,677,928.66, 116,532,242.30 and 28,494,238.65 is: 42,746,988.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,677,928.66 : 116,532,242.30 = 28,494,238.65 : x
  2. Step 2: Convert to fraction form
    77,677,928.66/116,532,242.30 = 28,494,238.65/x
  3. Step 3: Cross multiply
    77,677,928.66x = 116,532,242.30 × 28,494,238.65
  4. Step 4: Simplify right side
    77,677,928.66x = 3,320,497,522,515,824.50
  5. Step 5: Solve for x
    x = 3,320,497,522,515,824.50/77,677,928.66
  6. Step 6: Final answer
    x = 42,746,988.49

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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.