Home / 66,899,811.70-100,330,306.71-28,037,247.22

Finding the Fourth Proportional to 66,899,811.70, 100,330,306.71 and 28,037,247.22

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Solution

The fourth proportional to 66,899,811.70, 100,330,306.71 and 28,037,247.22 is: 42,047,735.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,899,811.70 : 100,330,306.71 = 28,037,247.22 : x
  2. Step 2: Convert to fraction form
    66,899,811.70/100,330,306.71 = 28,037,247.22/x
  3. Step 3: Cross multiply
    66,899,811.70x = 100,330,306.71 × 28,037,247.22
  4. Step 4: Simplify right side
    66,899,811.70x = 2,812,985,612,886,694.50
  5. Step 5: Solve for x
    x = 2,812,985,612,886,694.50/66,899,811.70
  6. Step 6: Final answer
    x = 42,047,735.88

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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.