Home / 28,051,560,071.56-38,711,173,769.41-15,191,299,859.09

Finding the Fourth Proportional to 28,051,560,071.56, 38,711,173,769.41 and 15,191,299,859.09

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Solution

The fourth proportional to 28,051,560,071.56, 38,711,173,769.41 and 15,191,299,859.09 is: 20,964,005,108.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,051,560,071.56 : 38,711,173,769.41 = 15,191,299,859.09 : x
  2. Step 2: Convert to fraction form
    28,051,560,071.56/38,711,173,769.41 = 15,191,299,859.09/x
  3. Step 3: Cross multiply
    28,051,560,071.56x = 38,711,173,769.41 × 15,191,299,859.09
  4. Step 4: Simplify right side
    28,051,560,071.56x = 588,073,048,628,370,669,568
  5. Step 5: Solve for x
    x = 588,073,048,628,370,669,568/28,051,560,071.56
  6. Step 6: Final answer
    x = 20,964,005,108.03

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Double scale
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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.