Home / 490,594,421.52-677,125,073.88-281,865,654.36

Finding the Fourth Proportional to 490,594,421.52, 677,125,073.88 and 281,865,654.36

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Solution

The fourth proportional to 490,594,421.52, 677,125,073.88 and 281,865,654.36 is: 389,034,798.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,594,421.52 : 677,125,073.88 = 281,865,654.36 : x
  2. Step 2: Convert to fraction form
    490,594,421.52/677,125,073.88 = 281,865,654.36/x
  3. Step 3: Cross multiply
    490,594,421.52x = 677,125,073.88 × 281,865,654.36
  4. Step 4: Simplify right side
    490,594,421.52x = 190,858,302,032,749,568
  5. Step 5: Solve for x
    x = 190,858,302,032,749,568/490,594,421.52
  6. Step 6: Final answer
    x = 389,034,798.73

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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.