Home / 99,520,870.20-149,281,305.30-82,514,758.20

Finding the Fourth Proportional to 99,520,870.20, 149,281,305.30 and 82,514,758.20

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Solution

The fourth proportional to 99,520,870.20, 149,281,305.30 and 82,514,758.20 is: 123,772,137.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,520,870.20 : 149,281,305.30 = 82,514,758.20 : x
  2. Step 2: Convert to fraction form
    99,520,870.20/149,281,305.30 = 82,514,758.20/x
  3. Step 3: Cross multiply
    99,520,870.20x = 149,281,305.30 × 82,514,758.20
  4. Step 4: Simplify right side
    99,520,870.20x = 12,317,910,810,609,880
  5. Step 5: Solve for x
    x = 12,317,910,810,609,880/99,520,870.20
  6. Step 6: Final answer
    x = 123,772,137.30

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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.