Home / 38,217,199,849.24-52,739,980,608.36-21,301,919,972.68

Finding the Fourth Proportional to 38,217,199,849.24, 52,739,980,608.36 and 21,301,919,972.68

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Solution

The fourth proportional to 38,217,199,849.24, 52,739,980,608.36 and 21,301,919,972.68 is: 29,396,786,020.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,217,199,849.24 : 52,739,980,608.36 = 21,301,919,972.68 : x
  2. Step 2: Convert to fraction form
    38,217,199,849.24/52,739,980,608.36 = 21,301,919,972.68/x
  3. Step 3: Cross multiply
    38,217,199,849.24x = 52,739,980,608.36 × 21,301,919,972.68
  4. Step 4: Simplify right side
    38,217,199,849.24x = 1,123,462,846,279,979,761,664
  5. Step 5: Solve for x
    x = 1,123,462,846,279,979,761,664/38,217,199,849.24
  6. Step 6: Final answer
    x = 29,396,786,020.74

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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.