Home / 304,499,749.93-420,209,965.90-165,270,540.40

Finding the Fourth Proportional to 304,499,749.93, 420,209,965.90 and 165,270,540.40

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Solution

The fourth proportional to 304,499,749.93, 420,209,965.90 and 165,270,540.40 is: 228,073,514.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,499,749.93 : 420,209,965.90 = 165,270,540.40 : x
  2. Step 2: Convert to fraction form
    304,499,749.93/420,209,965.90 = 165,270,540.40/x
  3. Step 3: Cross multiply
    304,499,749.93x = 420,209,965.90 × 165,270,540.40
  4. Step 4: Simplify right side
    304,499,749.93x = 69,448,328,144,914,640
  5. Step 5: Solve for x
    x = 69,448,328,144,914,640/304,499,749.93
  6. Step 6: Final answer
    x = 228,073,514.55

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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.