Home / 13,437,816.72-20,169,717.48-12,709,548.96

Finding the Fourth Proportional to 13,437,816.72, 20,169,717.48 and 12,709,548.96

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Solution

The fourth proportional to 13,437,816.72, 20,169,717.48 and 12,709,548.96 is: 19,076,611.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,437,816.72 : 20,169,717.48 = 12,709,548.96 : x
  2. Step 2: Convert to fraction form
    13,437,816.72/20,169,717.48 = 12,709,548.96/x
  3. Step 3: Cross multiply
    13,437,816.72x = 20,169,717.48 × 12,709,548.96
  4. Step 4: Simplify right side
    13,437,816.72x = 256,348,011,821,427.84
  5. Step 5: Solve for x
    x = 256,348,011,821,427.84/13,437,816.72
  6. Step 6: Final answer
    x = 19,076,611.71

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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.