Home / 304,485,431.60-420,190,301.08-165,256,193.37

Finding the Fourth Proportional to 304,485,431.60, 420,190,301.08 and 165,256,193.37

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Solution

The fourth proportional to 304,485,431.60, 420,190,301.08 and 165,256,193.37 is: 228,053,766.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,485,431.60 : 420,190,301.08 = 165,256,193.37 : x
  2. Step 2: Convert to fraction form
    304,485,431.60/420,190,301.08 = 165,256,193.37/x
  3. Step 3: Cross multiply
    304,485,431.60x = 420,190,301.08 × 165,256,193.37
  4. Step 4: Simplify right side
    304,485,431.60x = 69,439,049,646,891,624
  5. Step 5: Solve for x
    x = 69,439,049,646,891,624/304,485,431.60
  6. Step 6: Final answer
    x = 228,053,766.91

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1.5x scale

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.