Home / 80,532,738.83-111,137,961.45-45,724,271.87

Finding the Fourth Proportional to 80,532,738.83, 111,137,961.45 and 45,724,271.87

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Solution

The fourth proportional to 80,532,738.83, 111,137,961.45 and 45,724,271.87 is: 63,101,074.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,532,738.83 : 111,137,961.45 = 45,724,271.87 : x
  2. Step 2: Convert to fraction form
    80,532,738.83/111,137,961.45 = 45,724,271.87/x
  3. Step 3: Cross multiply
    80,532,738.83x = 111,137,961.45 × 45,724,271.87
  4. Step 4: Simplify right side
    80,532,738.83x = 5,081,702,363,861,690
  5. Step 5: Solve for x
    x = 5,081,702,363,861,690/80,532,738.83
  6. Step 6: Final answer
    x = 63,101,074.64

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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.