Home / 13,203,590.40-19,786,723.20-8,139,859.20

Finding the Fourth Proportional to 13,203,590.40, 19,786,723.20 and 8,139,859.20

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Solution

The fourth proportional to 13,203,590.40, 19,786,723.20 and 8,139,859.20 is: 12,198,283.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,203,590.40 : 19,786,723.20 = 8,139,859.20 : x
  2. Step 2: Convert to fraction form
    13,203,590.40/19,786,723.20 = 8,139,859.20/x
  3. Step 3: Cross multiply
    13,203,590.40x = 19,786,723.20 × 8,139,859.20
  4. Step 4: Simplify right side
    13,203,590.40x = 161,061,140,877,373.44
  5. Step 5: Solve for x
    x = 161,061,140,877,373.44/13,203,590.40
  6. Step 6: Final answer
    x = 12,198,283.65

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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.