Home / 8,191,143.80-12,294,588.90-4,152,192.20

Finding the Fourth Proportional to 8,191,143.80, 12,294,588.90 and 4,152,192.20

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Solution

The fourth proportional to 8,191,143.80, 12,294,588.90 and 4,152,192.20 is: 6,232,279.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,191,143.80 : 12,294,588.90 = 4,152,192.20 : x
  2. Step 2: Convert to fraction form
    8,191,143.80/12,294,588.90 = 4,152,192.20/x
  3. Step 3: Cross multiply
    8,191,143.80x = 12,294,588.90 × 4,152,192.20
  4. Step 4: Simplify right side
    8,191,143.80x = 51,049,496,132,786.59
  5. Step 5: Solve for x
    x = 51,049,496,132,786.59/8,191,143.80
  6. Step 6: Final answer
    x = 6,232,279.32

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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.