Home / 304,485,442.35-420,190,315.89-165,256,204.11

Finding the Fourth Proportional to 304,485,442.35, 420,190,315.89 and 165,256,204.11

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Solution

The fourth proportional to 304,485,442.35, 420,190,315.89 and 165,256,204.11 is: 228,053,781.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,485,442.35 : 420,190,315.89 = 165,256,204.11 : x
  2. Step 2: Convert to fraction form
    304,485,442.35/420,190,315.89 = 165,256,204.11/x
  3. Step 3: Cross multiply
    304,485,442.35x = 420,190,315.89 × 165,256,204.11
  4. Step 4: Simplify right side
    304,485,442.35x = 69,439,056,607,763,216
  5. Step 5: Solve for x
    x = 69,439,056,607,763,216/304,485,442.35
  6. Step 6: Final answer
    x = 228,053,781.72

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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.