Home / 90,795,898.60-136,193,847.90-82,435,143.40

Finding the Fourth Proportional to 90,795,898.60, 136,193,847.90 and 82,435,143.40

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Solution

The fourth proportional to 90,795,898.60, 136,193,847.90 and 82,435,143.40 is: 123,652,715.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,795,898.60 : 136,193,847.90 = 82,435,143.40 : x
  2. Step 2: Convert to fraction form
    90,795,898.60/136,193,847.90 = 82,435,143.40/x
  3. Step 3: Cross multiply
    90,795,898.60x = 136,193,847.90 × 82,435,143.40
  4. Step 4: Simplify right side
    90,795,898.60x = 11,227,159,381,834,290
  5. Step 5: Solve for x
    x = 11,227,159,381,834,290/90,795,898.60
  6. Step 6: Final answer
    x = 123,652,715.10

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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.