Home / 2,638,361,314.33-3,640,925,381.81-1,432,691,790.66

Finding the Fourth Proportional to 2,638,361,314.33, 3,640,925,381.81 and 1,432,691,790.66

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Solution

The fourth proportional to 2,638,361,314.33, 3,640,925,381.81 and 1,432,691,790.66 is: 1,977,107,485.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,638,361,314.33 : 3,640,925,381.81 = 1,432,691,790.66 : x
  2. Step 2: Convert to fraction form
    2,638,361,314.33/3,640,925,381.81 = 1,432,691,790.66/x
  3. Step 3: Cross multiply
    2,638,361,314.33x = 3,640,925,381.81 × 1,432,691,790.66
  4. Step 4: Simplify right side
    2,638,361,314.33x = 5,216,323,904,917,649,408
  5. Step 5: Solve for x
    x = 5,216,323,904,917,649,408/2,638,361,314.33
  6. Step 6: Final answer
    x = 1,977,107,485.84

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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.