Home / 456,749,442.72-630,314,922.24-247,905,660.96

Finding the Fourth Proportional to 456,749,442.72, 630,314,922.24 and 247,905,660.96

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Solution

The fourth proportional to 456,749,442.72, 630,314,922.24 and 247,905,660.96 is: 342,110,187.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,749,442.72 : 630,314,922.24 = 247,905,660.96 : x
  2. Step 2: Convert to fraction form
    456,749,442.72/630,314,922.24 = 247,905,660.96/x
  3. Step 3: Cross multiply
    456,749,442.72x = 630,314,922.24 × 247,905,660.96
  4. Step 4: Simplify right side
    456,749,442.72x = 156,258,637,410,858,208
  5. Step 5: Solve for x
    x = 156,258,637,410,858,208/456,749,442.72
  6. Step 6: Final answer
    x = 342,110,187.33

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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.