Home / 304,499,745.72-420,209,960.09-165,270,536.19

Finding the Fourth Proportional to 304,499,745.72, 420,209,960.09 and 165,270,536.19

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Solution

The fourth proportional to 304,499,745.72, 420,209,960.09 and 165,270,536.19 is: 228,073,508.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,499,745.72 : 420,209,960.09 = 165,270,536.19 : x
  2. Step 2: Convert to fraction form
    304,499,745.72/420,209,960.09 = 165,270,536.19/x
  3. Step 3: Cross multiply
    304,499,745.72x = 420,209,960.09 × 165,270,536.19
  4. Step 4: Simplify right side
    304,499,745.72x = 69,448,325,415,626,440
  5. Step 5: Solve for x
    x = 69,448,325,415,626,440/304,499,745.72
  6. Step 6: Final answer
    x = 228,073,508.74

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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.