Home / 90,856,419.57-125,381,219.43-49,603,311.94

Finding the Fourth Proportional to 90,856,419.57, 125,381,219.43 and 49,603,311.94

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Solution

The fourth proportional to 90,856,419.57, 125,381,219.43 and 49,603,311.94 is: 68,452,221.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,856,419.57 : 125,381,219.43 = 49,603,311.94 : x
  2. Step 2: Convert to fraction form
    90,856,419.57/125,381,219.43 = 49,603,311.94/x
  3. Step 3: Cross multiply
    90,856,419.57x = 125,381,219.43 × 49,603,311.94
  4. Step 4: Simplify right side
    90,856,419.57x = 6,219,323,738,803,879
  5. Step 5: Solve for x
    x = 6,219,323,738,803,879/90,856,419.57
  6. Step 6: Final answer
    x = 68,452,221.30

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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.