Home / 155,060,427.13-213,984,824.52-85,448,299.21

Finding the Fourth Proportional to 155,060,427.13, 213,984,824.52 and 85,448,299.21

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Solution

The fourth proportional to 155,060,427.13, 213,984,824.52 and 85,448,299.21 is: 117,919,443.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,060,427.13 : 213,984,824.52 = 85,448,299.21 : x
  2. Step 2: Convert to fraction form
    155,060,427.13/213,984,824.52 = 85,448,299.21/x
  3. Step 3: Cross multiply
    155,060,427.13x = 213,984,824.52 × 85,448,299.21
  4. Step 4: Simplify right side
    155,060,427.13x = 18,284,639,311,769,772
  5. Step 5: Solve for x
    x = 18,284,639,311,769,772/155,060,427.13
  6. Step 6: Final answer
    x = 117,919,443.73

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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.