Home / 28,552,368,791.76-39,403,213,881.46-15,692,464,576.79

Finding the Fourth Proportional to 28,552,368,791.76, 39,403,213,881.46 and 15,692,464,576.79

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Solution

The fourth proportional to 28,552,368,791.76, 39,403,213,881.46 and 15,692,464,576.79 is: 21,656,120,462.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,552,368,791.76 : 39,403,213,881.46 = 15,692,464,576.79 : x
  2. Step 2: Convert to fraction form
    28,552,368,791.76/39,403,213,881.46 = 15,692,464,576.79/x
  3. Step 3: Cross multiply
    28,552,368,791.76x = 39,403,213,881.46 × 15,692,464,576.79
  4. Step 4: Simplify right side
    28,552,368,791.76x = 618,333,538,046,491,099,136
  5. Step 5: Solve for x
    x = 618,333,538,046,491,099,136/28,552,368,791.76
  6. Step 6: Final answer
    x = 21,656,120,462.58

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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.