Home / 66,856,811.40-100,285,217.10-61,117,248.60

Finding the Fourth Proportional to 66,856,811.40, 100,285,217.10 and 61,117,248.60

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Solution

The fourth proportional to 66,856,811.40, 100,285,217.10 and 61,117,248.60 is: 91,675,872.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,856,811.40 : 100,285,217.10 = 61,117,248.60 : x
  2. Step 2: Convert to fraction form
    66,856,811.40/100,285,217.10 = 61,117,248.60/x
  3. Step 3: Cross multiply
    66,856,811.40x = 100,285,217.10 × 61,117,248.60
  4. Step 4: Simplify right side
    66,856,811.40x = 6,129,156,544,405,671
  5. Step 5: Solve for x
    x = 6,129,156,544,405,671/66,856,811.40
  6. Step 6: Final answer
    x = 91,675,872.90

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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.