Home / 281,261,916.57-388,276,023.66-187,332,379.05

Finding the Fourth Proportional to 281,261,916.57, 388,276,023.66 and 187,332,379.05

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Solution

The fourth proportional to 281,261,916.57, 388,276,023.66 and 187,332,379.05 is: 258,608,318.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,261,916.57 : 388,276,023.66 = 187,332,379.05 : x
  2. Step 2: Convert to fraction form
    281,261,916.57/388,276,023.66 = 187,332,379.05/x
  3. Step 3: Cross multiply
    281,261,916.57x = 388,276,023.66 × 187,332,379.05
  4. Step 4: Simplify right side
    281,261,916.57x = 72,736,671,240,301,904
  5. Step 5: Solve for x
    x = 72,736,671,240,301,904/281,261,916.57
  6. Step 6: Final answer
    x = 258,608,318.28

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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.