Home / 20,187,781.30-30,261,988.95-11,543,007.70

Finding the Fourth Proportional to 20,187,781.30, 30,261,988.95 and 11,543,007.70

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Solution

The fourth proportional to 20,187,781.30, 30,261,988.95 and 11,543,007.70 is: 17,303,257.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,187,781.30 : 30,261,988.95 = 11,543,007.70 : x
  2. Step 2: Convert to fraction form
    20,187,781.30/30,261,988.95 = 11,543,007.70/x
  3. Step 3: Cross multiply
    20,187,781.30x = 30,261,988.95 × 11,543,007.70
  4. Step 4: Simplify right side
    20,187,781.30x = 349,314,371,467,164.88
  5. Step 5: Solve for x
    x = 349,314,371,467,164.88/20,187,781.30
  6. Step 6: Final answer
    x = 17,303,257.17

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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.