Home / 13,600,035.44-18,768,385.24-7,405,421.68

Finding the Fourth Proportional to 13,600,035.44, 18,768,385.24 and 7,405,421.68

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Solution

The fourth proportional to 13,600,035.44, 18,768,385.24 and 7,405,421.68 is: 10,219,665.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,600,035.44 : 18,768,385.24 = 7,405,421.68 : x
  2. Step 2: Convert to fraction form
    13,600,035.44/18,768,385.24 = 7,405,421.68/x
  3. Step 3: Cross multiply
    13,600,035.44x = 18,768,385.24 × 7,405,421.68
  4. Step 4: Simplify right side
    13,600,035.44x = 138,987,806,954,887.98
  5. Step 5: Solve for x
    x = 138,987,806,954,887.98/13,600,035.44
  6. Step 6: Final answer
    x = 10,219,665.06

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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.