Home / 248,411,258.40-372,139,319.60-138,904,294.96

Finding the Fourth Proportional to 248,411,258.40, 372,139,319.60 and 138,904,294.96

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Solution

The fourth proportional to 248,411,258.40, 372,139,319.60 and 138,904,294.96 is: 208,089,400.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,411,258.40 : 372,139,319.60 = 138,904,294.96 : x
  2. Step 2: Convert to fraction form
    248,411,258.40/372,139,319.60 = 138,904,294.96/x
  3. Step 3: Cross multiply
    248,411,258.40x = 372,139,319.60 × 138,904,294.96
  4. Step 4: Simplify right side
    248,411,258.40x = 51,691,749,815,932,112
  5. Step 5: Solve for x
    x = 51,691,749,815,932,112/248,411,258.40
  6. Step 6: Final answer
    x = 208,089,400.41

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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.