Home / 13,590,709.57-18,755,181.93-7,479,138.07

Finding the Fourth Proportional to 13,590,709.57, 18,755,181.93 and 7,479,138.07

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Solution

The fourth proportional to 13,590,709.57, 18,755,181.93 and 7,479,138.07 is: 10,321,212.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,590,709.57 : 18,755,181.93 = 7,479,138.07 : x
  2. Step 2: Convert to fraction form
    13,590,709.57/18,755,181.93 = 7,479,138.07/x
  3. Step 3: Cross multiply
    13,590,709.57x = 18,755,181.93 × 7,479,138.07
  4. Step 4: Simplify right side
    13,590,709.57x = 140,272,595,182,439.08
  5. Step 5: Solve for x
    x = 140,272,595,182,439.08/13,590,709.57
  6. Step 6: Final answer
    x = 10,321,212.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.