Home / 8,790,556.80-12,131,053.88-4,870,395.72

Finding the Fourth Proportional to 8,790,556.80, 12,131,053.88 and 4,870,395.72

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Solution

The fourth proportional to 8,790,556.80, 12,131,053.88 and 4,870,395.72 is: 6,721,193.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,790,556.80 : 12,131,053.88 = 4,870,395.72 : x
  2. Step 2: Convert to fraction form
    8,790,556.80/12,131,053.88 = 4,870,395.72/x
  3. Step 3: Cross multiply
    8,790,556.80x = 12,131,053.88 × 4,870,395.72
  4. Step 4: Simplify right side
    8,790,556.80x = 59,083,032,896,241.39
  5. Step 5: Solve for x
    x = 59,083,032,896,241.39/8,790,556.80
  6. Step 6: Final answer
    x = 6,721,193.46

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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.