Home / 28,016,001.64-38,662,109.22-15,138,945.64

Finding the Fourth Proportional to 28,016,001.64, 38,662,109.22 and 15,138,945.64

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Solution

The fourth proportional to 28,016,001.64, 38,662,109.22 and 15,138,945.64 is: 20,891,759.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,016,001.64 : 38,662,109.22 = 15,138,945.64 : x
  2. Step 2: Convert to fraction form
    28,016,001.64/38,662,109.22 = 15,138,945.64/x
  3. Step 3: Cross multiply
    28,016,001.64x = 38,662,109.22 × 15,138,945.64
  4. Step 4: Simplify right side
    28,016,001.64x = 585,303,569,809,322.75
  5. Step 5: Solve for x
    x = 585,303,569,809,322.75/28,016,001.64
  6. Step 6: Final answer
    x = 20,891,759.55

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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.