Home / 76,831,650.82-115,247,673.06-31,393,445.32

Finding the Fourth Proportional to 76,831,650.82, 115,247,673.06 and 31,393,445.32

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Solution

The fourth proportional to 76,831,650.82, 115,247,673.06 and 31,393,445.32 is: 47,090,248.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,831,650.82 : 115,247,673.06 = 31,393,445.32 : x
  2. Step 2: Convert to fraction form
    76,831,650.82/115,247,673.06 = 31,393,445.32/x
  3. Step 3: Cross multiply
    76,831,650.82x = 115,247,673.06 × 31,393,445.32
  4. Step 4: Simplify right side
    76,831,650.82x = 3,618,021,522,466,347
  5. Step 5: Solve for x
    x = 3,618,021,522,466,347/76,831,650.82
  6. Step 6: Final answer
    x = 47,090,248.40

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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.