Home / 113,669,147.52-156,877,790.40-74,543,840.64

Finding the Fourth Proportional to 113,669,147.52, 156,877,790.40 and 74,543,840.64

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Solution

The fourth proportional to 113,669,147.52, 156,877,790.40 and 74,543,840.64 is: 102,879,921.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,669,147.52 : 156,877,790.40 = 74,543,840.64 : x
  2. Step 2: Convert to fraction form
    113,669,147.52/156,877,790.40 = 74,543,840.64/x
  3. Step 3: Cross multiply
    113,669,147.52x = 156,877,790.40 × 74,543,840.64
  4. Step 4: Simplify right side
    113,669,147.52x = 11,694,273,007,532,922
  5. Step 5: Solve for x
    x = 11,694,273,007,532,922/113,669,147.52
  6. Step 6: Final answer
    x = 102,879,921.80

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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.