Home / 12,559,936.80-18,839,905.20-11,813,440.80

Finding the Fourth Proportional to 12,559,936.80, 18,839,905.20 and 11,813,440.80

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Solution

The fourth proportional to 12,559,936.80, 18,839,905.20 and 11,813,440.80 is: 17,720,161.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,559,936.80 : 18,839,905.20 = 11,813,440.80 : x
  2. Step 2: Convert to fraction form
    12,559,936.80/18,839,905.20 = 11,813,440.80/x
  3. Step 3: Cross multiply
    12,559,936.80x = 18,839,905.20 × 11,813,440.80
  4. Step 4: Simplify right side
    12,559,936.80x = 222,564,104,757,812.16
  5. Step 5: Solve for x
    x = 222,564,104,757,812.16/12,559,936.80
  6. Step 6: Final answer
    x = 17,720,161.20

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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.