Home / 228,633,423.44-315,491,358.78-129,494,384.28

Finding the Fourth Proportional to 228,633,423.44, 315,491,358.78 and 129,494,384.28

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Solution

The fourth proportional to 228,633,423.44, 315,491,358.78 and 129,494,384.28 is: 178,689,356.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,633,423.44 : 315,491,358.78 = 129,494,384.28 : x
  2. Step 2: Convert to fraction form
    228,633,423.44/315,491,358.78 = 129,494,384.28/x
  3. Step 3: Cross multiply
    228,633,423.44x = 315,491,358.78 × 129,494,384.28
  4. Step 4: Simplify right side
    228,633,423.44x = 40,854,359,250,876,672
  5. Step 5: Solve for x
    x = 40,854,359,250,876,672/228,633,423.44
  6. Step 6: Final answer
    x = 178,689,356.25

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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.