Home / 257,511,782.72-355,361,333.28-141,618,278.72

Finding the Fourth Proportional to 257,511,782.72, 355,361,333.28 and 141,618,278.72

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Solution

The fourth proportional to 257,511,782.72, 355,361,333.28 and 141,618,278.72 is: 195,430,515.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,511,782.72 : 355,361,333.28 = 141,618,278.72 : x
  2. Step 2: Convert to fraction form
    257,511,782.72/355,361,333.28 = 141,618,278.72/x
  3. Step 3: Cross multiply
    257,511,782.72x = 355,361,333.28 × 141,618,278.72
  4. Step 4: Simplify right side
    257,511,782.72x = 50,325,660,342,757,848
  5. Step 5: Solve for x
    x = 50,325,660,342,757,848/257,511,782.72
  6. Step 6: Final answer
    x = 195,430,515.11

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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.