Home / 317,693,772.18-438,369,678.27-178,437,859.38

Finding the Fourth Proportional to 317,693,772.18, 438,369,678.27 and 178,437,859.38

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Solution

The fourth proportional to 317,693,772.18, 438,369,678.27 and 178,437,859.38 is: 246,217,439.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,693,772.18 : 438,369,678.27 = 178,437,859.38 : x
  2. Step 2: Convert to fraction form
    317,693,772.18/438,369,678.27 = 178,437,859.38/x
  3. Step 3: Cross multiply
    317,693,772.18x = 438,369,678.27 × 178,437,859.38
  4. Step 4: Simplify right side
    317,693,772.18x = 78,221,747,007,598,096
  5. Step 5: Solve for x
    x = 78,221,747,007,598,096/317,693,772.18
  6. Step 6: Final answer
    x = 246,217,439.11

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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.