Home / 20,483,072.64-28,267,004.16-11,315,168.64

Finding the Fourth Proportional to 20,483,072.64, 28,267,004.16 and 11,315,168.64

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Solution

The fourth proportional to 20,483,072.64, 28,267,004.16 and 11,315,168.64 is: 15,615,133.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,483,072.64 : 28,267,004.16 = 11,315,168.64 : x
  2. Step 2: Convert to fraction form
    20,483,072.64/28,267,004.16 = 11,315,168.64/x
  3. Step 3: Cross multiply
    20,483,072.64x = 28,267,004.16 × 11,315,168.64
  4. Step 4: Simplify right side
    20,483,072.64x = 319,845,919,017,981.56
  5. Step 5: Solve for x
    x = 319,845,919,017,981.56/20,483,072.64
  6. Step 6: Final answer
    x = 15,615,133.76

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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.