Home / 304,485,437.36-420,190,309-165,256,199.12

Finding the Fourth Proportional to 304,485,437.36, 420,190,309 and 165,256,199.12

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Solution

The fourth proportional to 304,485,437.36, 420,190,309 and 165,256,199.12 is: 228,053,774.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,485,437.36 : 420,190,309 = 165,256,199.12 : x
  2. Step 2: Convert to fraction form
    304,485,437.36/420,190,309 = 165,256,199.12/x
  3. Step 3: Cross multiply
    304,485,437.36x = 420,190,309 × 165,256,199.12
  4. Step 4: Simplify right side
    304,485,437.36x = 69,439,053,372,398,328
  5. Step 5: Solve for x
    x = 69,439,053,372,398,328/304,485,437.36
  6. Step 6: Final answer
    x = 228,053,774.84

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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.