Home / 76,836,333.05-115,254,519.20-21,512,318.68

Finding the Fourth Proportional to 76,836,333.05, 115,254,519.20 and 21,512,318.68

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Solution

The fourth proportional to 76,836,333.05, 115,254,519.20 and 21,512,318.68 is: 32,268,483.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,836,333.05 : 115,254,519.20 = 21,512,318.68 : x
  2. Step 2: Convert to fraction form
    76,836,333.05/115,254,519.20 = 21,512,318.68/x
  3. Step 3: Cross multiply
    76,836,333.05x = 115,254,519.20 × 21,512,318.68
  4. Step 4: Simplify right side
    76,836,333.05x = 2,479,391,946,457,756.50
  5. Step 5: Solve for x
    x = 2,479,391,946,457,756.50/76,836,333.05
  6. Step 6: Final answer
    x = 32,268,483.51

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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.