Home / 12,942,465.93-17,860,976.82-7,141,621.23

Finding the Fourth Proportional to 12,942,465.93, 17,860,976.82 and 7,141,621.23

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Solution

The fourth proportional to 12,942,465.93, 17,860,976.82 and 7,141,621.23 is: 9,855,643.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,942,465.93 : 17,860,976.82 = 7,141,621.23 : x
  2. Step 2: Convert to fraction form
    12,942,465.93/17,860,976.82 = 7,141,621.23/x
  3. Step 3: Cross multiply
    12,942,465.93x = 17,860,976.82 × 7,141,621.23
  4. Step 4: Simplify right side
    12,942,465.93x = 127,556,331,246,249.91
  5. Step 5: Solve for x
    x = 127,556,331,246,249.91/12,942,465.93
  6. Step 6: Final answer
    x = 9,855,643.58

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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.