Home / 12,302,936.40-18,454,404.60-7,519,967.40

Finding the Fourth Proportional to 12,302,936.40, 18,454,404.60 and 7,519,967.40

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Solution

The fourth proportional to 12,302,936.40, 18,454,404.60 and 7,519,967.40 is: 11,279,951.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,302,936.40 : 18,454,404.60 = 7,519,967.40 : x
  2. Step 2: Convert to fraction form
    12,302,936.40/18,454,404.60 = 7,519,967.40/x
  3. Step 3: Cross multiply
    12,302,936.40x = 18,454,404.60 × 7,519,967.40
  4. Step 4: Simplify right side
    12,302,936.40x = 138,776,520,978,410.06
  5. Step 5: Solve for x
    x = 138,776,520,978,410.06/12,302,936.40
  6. Step 6: Final answer
    x = 11,279,951.10

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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.