Home / 124,082,109.20-186,123,163.80-78,165,606.80

Finding the Fourth Proportional to 124,082,109.20, 186,123,163.80 and 78,165,606.80

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Solution

The fourth proportional to 124,082,109.20, 186,123,163.80 and 78,165,606.80 is: 117,248,410.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,082,109.20 : 186,123,163.80 = 78,165,606.80 : x
  2. Step 2: Convert to fraction form
    124,082,109.20/186,123,163.80 = 78,165,606.80/x
  3. Step 3: Cross multiply
    124,082,109.20x = 186,123,163.80 × 78,165,606.80
  4. Step 4: Simplify right side
    124,082,109.20x = 14,548,430,037,962,794
  5. Step 5: Solve for x
    x = 14,548,430,037,962,794/124,082,109.20
  6. Step 6: Final answer
    x = 117,248,410.20

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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.