Home / 208,180,893,857.86-287,183,902,229.92-135,965,230,432.64

Finding the Fourth Proportional to 208,180,893,857.86, 287,183,902,229.92 and 135,965,230,432.64

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Solution

The fourth proportional to 208,180,893,857.86, 287,183,902,229.92 and 135,965,230,432.64 is: 187,562,963,726.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,180,893,857.86 : 287,183,902,229.92 = 135,965,230,432.64 : x
  2. Step 2: Convert to fraction form
    208,180,893,857.86/287,183,902,229.92 = 135,965,230,432.64/x
  3. Step 3: Cross multiply
    208,180,893,857.86x = 287,183,902,229.92 × 135,965,230,432.64
  4. Step 4: Simplify right side
    208,180,893,857.86x = 39,047,025,443,235,824,664,576
  5. Step 5: Solve for x
    x = 39,047,025,443,235,824,664,576/208,180,893,857.86
  6. Step 6: Final answer
    x = 187,562,963,726.61

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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.