Home / 384,782,981.56-531,007,318.38-208,576,828.60

Finding the Fourth Proportional to 384,782,981.56, 531,007,318.38 and 208,576,828.60

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Solution

The fourth proportional to 384,782,981.56, 531,007,318.38 and 208,576,828.60 is: 287,839,711.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,782,981.56 : 531,007,318.38 = 208,576,828.60 : x
  2. Step 2: Convert to fraction form
    384,782,981.56/531,007,318.38 = 208,576,828.60/x
  3. Step 3: Cross multiply
    384,782,981.56x = 531,007,318.38 × 208,576,828.60
  4. Step 4: Simplify right side
    384,782,981.56x = 110,755,822,431,090,880
  5. Step 5: Solve for x
    x = 110,755,822,431,090,880/384,782,981.56
  6. Step 6: Final answer
    x = 287,839,711.57

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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.