Home / 12,661,020.72-18,991,554.84-3,076,407.36

Finding the Fourth Proportional to 12,661,020.72, 18,991,554.84 and 3,076,407.36

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Solution

The fourth proportional to 12,661,020.72, 18,991,554.84 and 3,076,407.36 is: 4,614,616.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,661,020.72 : 18,991,554.84 = 3,076,407.36 : x
  2. Step 2: Convert to fraction form
    12,661,020.72/18,991,554.84 = 3,076,407.36/x
  3. Step 3: Cross multiply
    12,661,020.72x = 18,991,554.84 × 3,076,407.36
  4. Step 4: Simplify right side
    12,661,020.72x = 58,425,759,087,619.62
  5. Step 5: Solve for x
    x = 58,425,759,087,619.62/12,661,020.72
  6. Step 6: Final answer
    x = 4,614,616.81

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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.