Home / 12,559,938.80-18,839,908.20-11,813,442.80

Finding the Fourth Proportional to 12,559,938.80, 18,839,908.20 and 11,813,442.80

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Solution

The fourth proportional to 12,559,938.80, 18,839,908.20 and 11,813,442.80 is: 17,720,164.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,559,938.80 : 18,839,908.20 = 11,813,442.80 : x
  2. Step 2: Convert to fraction form
    12,559,938.80/18,839,908.20 = 11,813,442.80/x
  3. Step 3: Cross multiply
    12,559,938.80x = 18,839,908.20 × 11,813,442.80
  4. Step 4: Simplify right side
    12,559,938.80x = 222,564,177,877,950.97
  5. Step 5: Solve for x
    x = 222,564,177,877,950.97/12,559,938.80
  6. Step 6: Final answer
    x = 17,720,164.20

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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.