Home / 285,429,372.70-428,144,059.05-199,335,930.70

Finding the Fourth Proportional to 285,429,372.70, 428,144,059.05 and 199,335,930.70

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Solution

The fourth proportional to 285,429,372.70, 428,144,059.05 and 199,335,930.70 is: 299,003,896.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,429,372.70 : 428,144,059.05 = 199,335,930.70 : x
  2. Step 2: Convert to fraction form
    285,429,372.70/428,144,059.05 = 199,335,930.70/x
  3. Step 3: Cross multiply
    285,429,372.70x = 428,144,059.05 × 199,335,930.70
  4. Step 4: Simplify right side
    285,429,372.70x = 85,344,494,484,407,504
  5. Step 5: Solve for x
    x = 85,344,494,484,407,504/285,429,372.70
  6. Step 6: Final answer
    x = 299,003,896.05

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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.