Home / 28,028,080.48-38,697,876.04-18,128,958.52

Finding the Fourth Proportional to 28,028,080.48, 38,697,876.04 and 18,128,958.52

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Solution

The fourth proportional to 28,028,080.48, 38,697,876.04 and 18,128,958.52 is: 25,030,333.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,028,080.48 : 38,697,876.04 = 18,128,958.52 : x
  2. Step 2: Convert to fraction form
    28,028,080.48/38,697,876.04 = 18,128,958.52/x
  3. Step 3: Cross multiply
    28,028,080.48x = 38,697,876.04 × 18,128,958.52
  4. Step 4: Simplify right side
    28,028,080.48x = 701,552,189,541,261.88
  5. Step 5: Solve for x
    x = 701,552,189,541,261.88/28,028,080.48
  6. Step 6: Final answer
    x = 25,030,333.06

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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.