Home / 76,831,688.54-115,247,729.64-31,393,483.04

Finding the Fourth Proportional to 76,831,688.54, 115,247,729.64 and 31,393,483.04

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Solution

The fourth proportional to 76,831,688.54, 115,247,729.64 and 31,393,483.04 is: 47,090,304.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,831,688.54 : 115,247,729.64 = 31,393,483.04 : x
  2. Step 2: Convert to fraction form
    76,831,688.54/115,247,729.64 = 31,393,483.04/x
  3. Step 3: Cross multiply
    76,831,688.54x = 115,247,729.64 × 31,393,483.04
  4. Step 4: Simplify right side
    76,831,688.54x = 3,618,027,645,344,460.50
  5. Step 5: Solve for x
    x = 3,618,027,645,344,460.50/76,831,688.54
  6. Step 6: Final answer
    x = 47,090,304.98

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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.