Home / 13,642,129.11-20,445,423.08-5,545,647.35

Finding the Fourth Proportional to 13,642,129.11, 20,445,423.08 and 5,545,647.35

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Solution

The fourth proportional to 13,642,129.11, 20,445,423.08 and 5,545,647.35 is: 8,311,247.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,642,129.11 : 20,445,423.08 = 5,545,647.35 : x
  2. Step 2: Convert to fraction form
    13,642,129.11/20,445,423.08 = 5,545,647.35/x
  3. Step 3: Cross multiply
    13,642,129.11x = 20,445,423.08 × 5,545,647.35
  4. Step 4: Simplify right side
    13,642,129.11x = 113,383,106,193,275.47
  5. Step 5: Solve for x
    x = 113,383,106,193,275.47/13,642,129.11
  6. Step 6: Final answer
    x = 8,311,247.11

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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.