Home / 85,179,871.20-127,769,806.80-27,674,018.40

Finding the Fourth Proportional to 85,179,871.20, 127,769,806.80 and 27,674,018.40

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Solution

The fourth proportional to 85,179,871.20, 127,769,806.80 and 27,674,018.40 is: 41,511,027.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,179,871.20 : 127,769,806.80 = 27,674,018.40 : x
  2. Step 2: Convert to fraction form
    85,179,871.20/127,769,806.80 = 27,674,018.40/x
  3. Step 3: Cross multiply
    85,179,871.20x = 127,769,806.80 × 27,674,018.40
  4. Step 4: Simplify right side
    85,179,871.20x = 3,535,903,984,347,645
  5. Step 5: Solve for x
    x = 3,535,903,984,347,645/85,179,871.20
  6. Step 6: Final answer
    x = 41,511,027.60

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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.