Home / 137,384,589.64-189,592,946.58-78,647,018.44

Finding the Fourth Proportional to 137,384,589.64, 189,592,946.58 and 78,647,018.44

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Solution

The fourth proportional to 137,384,589.64, 189,592,946.58 and 78,647,018.44 is: 108,534,152.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,384,589.64 : 189,592,946.58 = 78,647,018.44 : x
  2. Step 2: Convert to fraction form
    137,384,589.64/189,592,946.58 = 78,647,018.44/x
  3. Step 3: Cross multiply
    137,384,589.64x = 189,592,946.58 × 78,647,018.44
  4. Step 4: Simplify right side
    137,384,589.64x = 14,910,919,965,771,196
  5. Step 5: Solve for x
    x = 14,910,919,965,771,196/137,384,589.64
  6. Step 6: Final answer
    x = 108,534,152.23

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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.