Home / 13,203,351.40-19,786,364.70-8,139,620.20

Finding the Fourth Proportional to 13,203,351.40, 19,786,364.70 and 8,139,620.20

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Solution

The fourth proportional to 13,203,351.40, 19,786,364.70 and 8,139,620.20 is: 12,197,925.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,203,351.40 : 19,786,364.70 = 8,139,620.20 : x
  2. Step 2: Convert to fraction form
    13,203,351.40/19,786,364.70 = 8,139,620.20/x
  3. Step 3: Cross multiply
    13,203,351.40x = 19,786,364.70 × 8,139,620.20
  4. Step 4: Simplify right side
    13,203,351.40x = 161,053,493,796,686.94
  5. Step 5: Solve for x
    x = 161,053,493,796,686.94/13,203,351.40
  6. Step 6: Final answer
    x = 12,197,925.28

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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.