Home / 28,135,390,475,505-38,827,780,601,238-15,635,647,358,721

Finding the Fourth Proportional to 28,135,390,475,505, 38,827,780,601,238 and 15,635,647,358,721

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Solution

The fourth proportional to 28,135,390,475,505, 38,827,780,601,238 and 15,635,647,358,721 is: 21,577,716,709,895.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,135,390,475,505 : 38,827,780,601,238 = 15,635,647,358,721 : x
  2. Step 2: Convert to fraction form
    28,135,390,475,505/38,827,780,601,238 = 15,635,647,358,721/x
  3. Step 3: Cross multiply
    28,135,390,475,505x = 38,827,780,601,238 × 15,635,647,358,721
  4. Step 4: Simplify right side
    28,135,390,475,505x = 607,097,485,202,745,381,932,236,800
  5. Step 5: Solve for x
    x = 607,097,485,202,745,381,932,236,800/28,135,390,475,505
  6. Step 6: Final answer
    x = 21,577,716,709,895.73

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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.