Home / 137,483,861.40-189,731,324.60-74,763,627.64

Finding the Fourth Proportional to 137,483,861.40, 189,731,324.60 and 74,763,627.64

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Solution

The fourth proportional to 137,483,861.40, 189,731,324.60 and 74,763,627.64 is: 103,175,761.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,483,861.40 : 189,731,324.60 = 74,763,627.64 : x
  2. Step 2: Convert to fraction form
    137,483,861.40/189,731,324.60 = 74,763,627.64/x
  3. Step 3: Cross multiply
    137,483,861.40x = 189,731,324.60 × 74,763,627.64
  4. Step 4: Simplify right side
    137,483,861.40x = 14,185,002,104,038,372
  5. Step 5: Solve for x
    x = 14,185,002,104,038,372/137,483,861.40
  6. Step 6: Final answer
    x = 103,175,761.57

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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.