Home / 13,640,771.25-18,824,265.95-7,529,201.37

Finding the Fourth Proportional to 13,640,771.25, 18,824,265.95 and 7,529,201.37

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Solution

The fourth proportional to 13,640,771.25, 18,824,265.95 and 7,529,201.37 is: 10,390,298.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,640,771.25 : 18,824,265.95 = 7,529,201.37 : x
  2. Step 2: Convert to fraction form
    13,640,771.25/18,824,265.95 = 7,529,201.37/x
  3. Step 3: Cross multiply
    13,640,771.25x = 18,824,265.95 × 7,529,201.37
  4. Step 4: Simplify right side
    13,640,771.25x = 141,731,688,942,338.34
  5. Step 5: Solve for x
    x = 141,731,688,942,338.34/13,640,771.25
  6. Step 6: Final answer
    x = 10,390,298.78

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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.