Home / 404,492,775-558,200,020.92-218,853,790.80

Finding the Fourth Proportional to 404,492,775, 558,200,020.92 and 218,853,790.80

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Solution

The fourth proportional to 404,492,775, 558,200,020.92 and 218,853,790.80 is: 302,018,226.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,492,775 : 558,200,020.92 = 218,853,790.80 : x
  2. Step 2: Convert to fraction form
    404,492,775/558,200,020.92 = 218,853,790.80/x
  3. Step 3: Cross multiply
    404,492,775x = 558,200,020.92 × 218,853,790.80
  4. Step 4: Simplify right side
    404,492,775x = 122,164,190,602,981,296
  5. Step 5: Solve for x
    x = 122,164,190,602,981,296/404,492,775
  6. Step 6: Final answer
    x = 302,018,226.66

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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.