Home / 13,699,981.88-18,905,997.80-7,504,893.53

Finding the Fourth Proportional to 13,699,981.88, 18,905,997.80 and 7,504,893.53

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Solution

The fourth proportional to 13,699,981.88, 18,905,997.80 and 7,504,893.53 is: 10,356,765.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,699,981.88 : 18,905,997.80 = 7,504,893.53 : x
  2. Step 2: Convert to fraction form
    13,699,981.88/18,905,997.80 = 7,504,893.53/x
  3. Step 3: Cross multiply
    13,699,981.88x = 18,905,997.80 × 7,504,893.53
  4. Step 4: Simplify right side
    13,699,981.88x = 141,887,500,435,359.81
  5. Step 5: Solve for x
    x = 141,887,500,435,359.81/13,699,981.88
  6. Step 6: Final answer
    x = 10,356,765.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.