Home / 304,485,438.36-420,190,310.38-165,256,200.12

Finding the Fourth Proportional to 304,485,438.36, 420,190,310.38 and 165,256,200.12

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Solution

The fourth proportional to 304,485,438.36, 420,190,310.38 and 165,256,200.12 is: 228,053,776.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,485,438.36 : 420,190,310.38 = 165,256,200.12 : x
  2. Step 2: Convert to fraction form
    304,485,438.36/420,190,310.38 = 165,256,200.12/x
  3. Step 3: Cross multiply
    304,485,438.36x = 420,190,310.38 × 165,256,200.12
  4. Step 4: Simplify right side
    304,485,438.36x = 69,439,054,020,642,192
  5. Step 5: Solve for x
    x = 69,439,054,020,642,192/304,485,438.36
  6. Step 6: Final answer
    x = 228,053,776.22

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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.