Home / 18,791,028-25,931,177.60-11,056,571.28

Finding the Fourth Proportional to 18,791,028, 25,931,177.60 and 11,056,571.28

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Solution

The fourth proportional to 18,791,028, 25,931,177.60 and 11,056,571.28 is: 15,257,808.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,791,028 : 25,931,177.60 = 11,056,571.28 : x
  2. Step 2: Convert to fraction form
    18,791,028/25,931,177.60 = 11,056,571.28/x
  3. Step 3: Cross multiply
    18,791,028x = 25,931,177.60 × 11,056,571.28
  4. Step 4: Simplify right side
    18,791,028x = 286,709,913,453,456.44
  5. Step 5: Solve for x
    x = 286,709,913,453,456.44/18,791,028
  6. Step 6: Final answer
    x = 15,257,808.86

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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.