Home / 12,128,066.70-18,194,724.45-3,609,264.30

Finding the Fourth Proportional to 12,128,066.70, 18,194,724.45 and 3,609,264.30

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Solution

The fourth proportional to 12,128,066.70, 18,194,724.45 and 3,609,264.30 is: 5,414,677.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,128,066.70 : 18,194,724.45 = 3,609,264.30 : x
  2. Step 2: Convert to fraction form
    12,128,066.70/18,194,724.45 = 3,609,264.30/x
  3. Step 3: Cross multiply
    12,128,066.70x = 18,194,724.45 × 3,609,264.30
  4. Step 4: Simplify right side
    12,128,066.70x = 65,669,569,405,722.13
  5. Step 5: Solve for x
    x = 65,669,569,405,722.13/12,128,066.70
  6. Step 6: Final answer
    x = 5,414,677.46

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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.