Home / 20,483,076.64-28,267,009.68-11,315,172.64

Finding the Fourth Proportional to 20,483,076.64, 28,267,009.68 and 11,315,172.64

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Solution

The fourth proportional to 20,483,076.64, 28,267,009.68 and 11,315,172.64 is: 15,615,139.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,483,076.64 : 28,267,009.68 = 11,315,172.64 : x
  2. Step 2: Convert to fraction form
    20,483,076.64/28,267,009.68 = 11,315,172.64/x
  3. Step 3: Cross multiply
    20,483,076.64x = 28,267,009.68 × 11,315,172.64
  4. Step 4: Simplify right side
    20,483,076.64x = 319,846,094,545,751.19
  5. Step 5: Solve for x
    x = 319,846,094,545,751.19/20,483,076.64
  6. Step 6: Final answer
    x = 15,615,139.28

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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.