Home / 7,640,879.58-10,545,186.42-4,378,127.22

Finding the Fourth Proportional to 7,640,879.58, 10,545,186.42 and 4,378,127.22

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Solution

The fourth proportional to 7,640,879.58, 10,545,186.42 and 4,378,127.22 is: 6,042,258.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,640,879.58 : 10,545,186.42 = 4,378,127.22 : x
  2. Step 2: Convert to fraction form
    7,640,879.58/10,545,186.42 = 4,378,127.22/x
  3. Step 3: Cross multiply
    7,640,879.58x = 10,545,186.42 × 4,378,127.22
  4. Step 4: Simplify right side
    7,640,879.58x = 46,168,167,705,376.35
  5. Step 5: Solve for x
    x = 46,168,167,705,376.35/7,640,879.58
  6. Step 6: Final answer
    x = 6,042,258.25

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1.5x scale

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.