Home / 280,629,774.46-387,271,594.63-155,190,458.33

Finding the Fourth Proportional to 280,629,774.46, 387,271,594.63 and 155,190,458.33

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Solution

The fourth proportional to 280,629,774.46, 387,271,594.63 and 155,190,458.33 is: 214,164,218.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,629,774.46 : 387,271,594.63 = 155,190,458.33 : x
  2. Step 2: Convert to fraction form
    280,629,774.46/387,271,594.63 = 155,190,458.33/x
  3. Step 3: Cross multiply
    280,629,774.46x = 387,271,594.63 × 155,190,458.33
  4. Step 4: Simplify right side
    280,629,774.46x = 60,100,856,268,819,672
  5. Step 5: Solve for x
    x = 60,100,856,268,819,672/280,629,774.46
  6. Step 6: Final answer
    x = 214,164,218.26

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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.