Home / 85,235,971.56-117,657,627.32-55,869,195.48

Finding the Fourth Proportional to 85,235,971.56, 117,657,627.32 and 55,869,195.48

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Solution

The fourth proportional to 85,235,971.56, 117,657,627.32 and 55,869,195.48 is: 77,120,455.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,235,971.56 : 117,657,627.32 = 55,869,195.48 : x
  2. Step 2: Convert to fraction form
    85,235,971.56/117,657,627.32 = 55,869,195.48/x
  3. Step 3: Cross multiply
    85,235,971.56x = 117,657,627.32 × 55,869,195.48
  4. Step 4: Simplify right side
    85,235,971.56x = 6,573,436,980,454,068
  5. Step 5: Solve for x
    x = 6,573,436,980,454,068/85,235,971.56
  6. Step 6: Final answer
    x = 77,120,455.84

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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.