Home / 90,856,419.08-125,381,218.74-49,603,311.45

Finding the Fourth Proportional to 90,856,419.08, 125,381,218.74 and 49,603,311.45

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Solution

The fourth proportional to 90,856,419.08, 125,381,218.74 and 49,603,311.45 is: 68,452,220.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,856,419.08 : 125,381,218.74 = 49,603,311.45 : x
  2. Step 2: Convert to fraction form
    90,856,419.08/125,381,218.74 = 49,603,311.45/x
  3. Step 3: Cross multiply
    90,856,419.08x = 125,381,218.74 × 49,603,311.45
  4. Step 4: Simplify right side
    90,856,419.08x = 6,219,323,643,140,797
  5. Step 5: Solve for x
    x = 6,219,323,643,140,797/90,856,419.08
  6. Step 6: Final answer
    x = 68,452,220.62

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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.