Home / 12,559,941.80-18,839,912.70-11,813,445.80

Finding the Fourth Proportional to 12,559,941.80, 18,839,912.70 and 11,813,445.80

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Solution

The fourth proportional to 12,559,941.80, 18,839,912.70 and 11,813,445.80 is: 17,720,168.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,559,941.80 : 18,839,912.70 = 11,813,445.80 : x
  2. Step 2: Convert to fraction form
    12,559,941.80/18,839,912.70 = 11,813,445.80/x
  3. Step 3: Cross multiply
    12,559,941.80x = 18,839,912.70 × 11,813,445.80
  4. Step 4: Simplify right side
    12,559,941.80x = 222,564,287,558,181.66
  5. Step 5: Solve for x
    x = 222,564,287,558,181.66/12,559,941.80
  6. Step 6: Final answer
    x = 17,720,168.70

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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.