Home / 257,394,200.16-355,201,472.73-139,912,540.50

Finding the Fourth Proportional to 257,394,200.16, 355,201,472.73 and 139,912,540.50

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Solution

The fourth proportional to 257,394,200.16, 355,201,472.73 and 139,912,540.50 is: 193,077,934.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,394,200.16 : 355,201,472.73 = 139,912,540.50 : x
  2. Step 2: Convert to fraction form
    257,394,200.16/355,201,472.73 = 139,912,540.50/x
  3. Step 3: Cross multiply
    257,394,200.16x = 355,201,472.73 × 139,912,540.50
  4. Step 4: Simplify right side
    257,394,200.16x = 49,697,140,438,995,776
  5. Step 5: Solve for x
    x = 49,697,140,438,995,776/257,394,200.16
  6. Step 6: Final answer
    x = 193,077,934.19

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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.