Home / 3,616,811.76-5,421,899.88-1,621,179.12

Finding the Fourth Proportional to 3,616,811.76, 5,421,899.88 and 1,621,179.12

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Solution

The fourth proportional to 3,616,811.76, 5,421,899.88 and 1,621,179.12 is: 2,430,281.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,616,811.76 : 5,421,899.88 = 1,621,179.12 : x
  2. Step 2: Convert to fraction form
    3,616,811.76/5,421,899.88 = 1,621,179.12/x
  3. Step 3: Cross multiply
    3,616,811.76x = 5,421,899.88 × 1,621,179.12
  4. Step 4: Simplify right side
    3,616,811.76x = 8,789,870,876,186.51
  5. Step 5: Solve for x
    x = 8,789,870,876,186.51/3,616,811.76
  6. Step 6: Final answer
    x = 2,430,281.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.