Home / 28,028,078.48-38,697,873.28-18,128,956.52

Finding the Fourth Proportional to 28,028,078.48, 38,697,873.28 and 18,128,956.52

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Solution

The fourth proportional to 28,028,078.48, 38,697,873.28 and 18,128,956.52 is: 25,030,330.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,028,078.48 : 38,697,873.28 = 18,128,956.52 : x
  2. Step 2: Convert to fraction form
    28,028,078.48/38,697,873.28 = 18,128,956.52/x
  3. Step 3: Cross multiply
    28,028,078.48x = 38,697,873.28 × 18,128,956.52
  4. Step 4: Simplify right side
    28,028,078.48x = 701,552,062,109,589.75
  5. Step 5: Solve for x
    x = 701,552,062,109,589.75/28,028,078.48
  6. Step 6: Final answer
    x = 25,030,330.30

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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.