Home / 428,838,850.96-641,635,001.19-254,055,693.60

Finding the Fourth Proportional to 428,838,850.96, 641,635,001.19 and 254,055,693.60

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Solution

The fourth proportional to 428,838,850.96, 641,635,001.19 and 254,055,693.60 is: 380,121,868.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,838,850.96 : 641,635,001.19 = 254,055,693.60 : x
  2. Step 2: Convert to fraction form
    428,838,850.96/641,635,001.19 = 254,055,693.60/x
  3. Step 3: Cross multiply
    428,838,850.96x = 641,635,001.19 × 254,055,693.60
  4. Step 4: Simplify right side
    428,838,850.96x = 163,011,025,265,362,272
  5. Step 5: Solve for x
    x = 163,011,025,265,362,272/428,838,850.96
  6. Step 6: Final answer
    x = 380,121,868.39

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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.