Home / 12,151,179.12-18,229,533.48-6,468,409.20

Finding the Fourth Proportional to 12,151,179.12, 18,229,533.48 and 6,468,409.20

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Solution

The fourth proportional to 12,151,179.12, 18,229,533.48 and 6,468,409.20 is: 9,704,085.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,151,179.12 : 18,229,533.48 = 6,468,409.20 : x
  2. Step 2: Convert to fraction form
    12,151,179.12/18,229,533.48 = 6,468,409.20/x
  3. Step 3: Cross multiply
    12,151,179.12x = 18,229,533.48 × 6,468,409.20
  4. Step 4: Simplify right side
    12,151,179.12x = 117,916,082,073,740.02
  5. Step 5: Solve for x
    x = 117,916,082,073,740.02/12,151,179.12
  6. Step 6: Final answer
    x = 9,704,085.58

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1.5x scale

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.