Home / 28,387,884.25-39,175,280.27-15,510,828.25

Finding the Fourth Proportional to 28,387,884.25, 39,175,280.27 and 15,510,828.25

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Solution

The fourth proportional to 28,387,884.25, 39,175,280.27 and 15,510,828.25 is: 21,404,942.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,387,884.25 : 39,175,280.27 = 15,510,828.25 : x
  2. Step 2: Convert to fraction form
    28,387,884.25/39,175,280.27 = 15,510,828.25/x
  3. Step 3: Cross multiply
    28,387,884.25x = 39,175,280.27 × 15,510,828.25
  4. Step 4: Simplify right side
    28,387,884.25x = 607,641,043,913,583.62
  5. Step 5: Solve for x
    x = 607,641,043,913,583.62/28,387,884.25
  6. Step 6: Final answer
    x = 21,404,942.99

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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.