Home / 9,205,886.80-12,703,859.40-5,131,418.32

Finding the Fourth Proportional to 9,205,886.80, 12,703,859.40 and 5,131,418.32

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Solution

The fourth proportional to 9,205,886.80, 12,703,859.40 and 5,131,418.32 is: 7,081,209.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,205,886.80 : 12,703,859.40 = 5,131,418.32 : x
  2. Step 2: Convert to fraction form
    9,205,886.80/12,703,859.40 = 5,131,418.32/x
  3. Step 3: Cross multiply
    9,205,886.80x = 12,703,859.40 × 5,131,418.32
  4. Step 4: Simplify right side
    9,205,886.80x = 65,188,816,859,864.21
  5. Step 5: Solve for x
    x = 65,188,816,859,864.21/9,205,886.80
  6. Step 6: Final answer
    x = 7,081,209.91

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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.