Home / 5,287,128.21-7,929,077.84-3,656,288.54

Finding the Fourth Proportional to 5,287,128.21, 7,929,077.84 and 3,656,288.54

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Solution

The fourth proportional to 5,287,128.21, 7,929,077.84 and 3,656,288.54 is: 5,483,316.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,287,128.21 : 7,929,077.84 = 3,656,288.54 : x
  2. Step 2: Convert to fraction form
    5,287,128.21/7,929,077.84 = 3,656,288.54/x
  3. Step 3: Cross multiply
    5,287,128.21x = 7,929,077.84 × 3,656,288.54
  4. Step 4: Simplify right side
    5,287,128.21x = 28,990,996,439,159.95
  5. Step 5: Solve for x
    x = 28,990,996,439,159.95/5,287,128.21
  6. Step 6: Final answer
    x = 5,483,316.33

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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.