Home / 20,580,742.37-28,401,465.06-11,288,388.07

Finding the Fourth Proportional to 20,580,742.37, 28,401,465.06 and 11,288,388.07

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Solution

The fourth proportional to 20,580,742.37, 28,401,465.06 and 11,288,388.07 is: 15,577,997.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,580,742.37 : 28,401,465.06 = 11,288,388.07 : x
  2. Step 2: Convert to fraction form
    20,580,742.37/28,401,465.06 = 11,288,388.07/x
  3. Step 3: Cross multiply
    20,580,742.37x = 28,401,465.06 × 11,288,388.07
  4. Step 4: Simplify right side
    20,580,742.37x = 320,606,759,282,822.19
  5. Step 5: Solve for x
    x = 320,606,759,282,822.19/20,580,742.37
  6. Step 6: Final answer
    x = 15,577,997.80

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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.