Home / 13,555,259.70-20,348,635.95-8,169,990.90

Finding the Fourth Proportional to 13,555,259.70, 20,348,635.95 and 8,169,990.90

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Solution

The fourth proportional to 13,555,259.70, 20,348,635.95 and 8,169,990.90 is: 12,264,476.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,555,259.70 : 20,348,635.95 = 8,169,990.90 : x
  2. Step 2: Convert to fraction form
    13,555,259.70/20,348,635.95 = 8,169,990.90/x
  3. Step 3: Cross multiply
    13,555,259.70x = 20,348,635.95 × 8,169,990.90
  4. Step 4: Simplify right side
    13,555,259.70x = 166,248,170,538,912.84
  5. Step 5: Solve for x
    x = 166,248,170,538,912.84/13,555,259.70
  6. Step 6: Final answer
    x = 12,264,476.98

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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.