Home / 12,209,710.56-18,314,376.28-4,128,361.62

Finding the Fourth Proportional to 12,209,710.56, 18,314,376.28 and 4,128,361.62

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Solution

The fourth proportional to 12,209,710.56, 18,314,376.28 and 4,128,361.62 is: 6,192,478.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,209,710.56 : 18,314,376.28 = 4,128,361.62 : x
  2. Step 2: Convert to fraction form
    12,209,710.56/18,314,376.28 = 4,128,361.62/x
  3. Step 3: Cross multiply
    12,209,710.56x = 18,314,376.28 × 4,128,361.62
  4. Step 4: Simplify right side
    12,209,710.56x = 75,608,368,128,590.38
  5. Step 5: Solve for x
    x = 75,608,368,128,590.38/12,209,710.56
  6. Step 6: Final answer
    x = 6,192,478.34

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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.