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Finding the Fourth Proportional to 308,966,221.73, 426,373,558.19 and 169,745,951.56

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Solution

The fourth proportional to 308,966,221.73, 426,373,558.19 and 169,745,951.56 is: 234,249,507.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,966,221.73 : 426,373,558.19 = 169,745,951.56 : x
  2. Step 2: Convert to fraction form
    308,966,221.73/426,373,558.19 = 169,745,951.56/x
  3. Step 3: Cross multiply
    308,966,221.73x = 426,373,558.19 × 169,745,951.56
  4. Step 4: Simplify right side
    308,966,221.73x = 72,375,185,354,984,576
  5. Step 5: Solve for x
    x = 72,375,185,354,984,576/308,966,221.73
  6. Step 6: Final answer
    x = 234,249,507.76

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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.