Home / 12,112,611.80-18,168,917.70-9,425,226.20

Finding the Fourth Proportional to 12,112,611.80, 18,168,917.70 and 9,425,226.20

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Solution

The fourth proportional to 12,112,611.80, 18,168,917.70 and 9,425,226.20 is: 14,137,839.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,112,611.80 : 18,168,917.70 = 9,425,226.20 : x
  2. Step 2: Convert to fraction form
    12,112,611.80/18,168,917.70 = 9,425,226.20/x
  3. Step 3: Cross multiply
    12,112,611.80x = 18,168,917.70 × 9,425,226.20
  4. Step 4: Simplify right side
    12,112,611.80x = 171,246,159,131,683.72
  5. Step 5: Solve for x
    x = 171,246,159,131,683.72/12,112,611.80
  6. Step 6: Final answer
    x = 14,137,839.30

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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.