Home / 137,907,122.31-206,890,951.55-40,870,435.32

Finding the Fourth Proportional to 137,907,122.31, 206,890,951.55 and 40,870,435.32

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Solution

The fourth proportional to 137,907,122.31, 206,890,951.55 and 40,870,435.32 is: 61,314,623.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,907,122.31 : 206,890,951.55 = 40,870,435.32 : x
  2. Step 2: Convert to fraction form
    137,907,122.31/206,890,951.55 = 40,870,435.32/x
  3. Step 3: Cross multiply
    137,907,122.31x = 206,890,951.55 × 40,870,435.32
  4. Step 4: Simplify right side
    137,907,122.31x = 8,455,723,253,413,176
  5. Step 5: Solve for x
    x = 8,455,723,253,413,176/137,907,122.31
  6. Step 6: Final answer
    x = 61,314,623.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.