Home / 495,741,959.45-685,105,472.02-406,292,819.42

Finding the Fourth Proportional to 495,741,959.45, 685,105,472.02 and 406,292,819.42

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Solution

The fourth proportional to 495,741,959.45, 685,105,472.02 and 406,292,819.42 is: 561,488,549.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,741,959.45 : 685,105,472.02 = 406,292,819.42 : x
  2. Step 2: Convert to fraction form
    495,741,959.45/685,105,472.02 = 406,292,819.42/x
  3. Step 3: Cross multiply
    495,741,959.45x = 685,105,472.02 × 406,292,819.42
  4. Step 4: Simplify right side
    495,741,959.45x = 278,353,433,824,674,144
  5. Step 5: Solve for x
    x = 278,353,433,824,674,144/495,741,959.45
  6. Step 6: Final answer
    x = 561,488,549.68

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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.