Home / 257,111,147.97-354,835,266.30-145,621,821.33

Finding the Fourth Proportional to 257,111,147.97, 354,835,266.30 and 145,621,821.33

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Solution

The fourth proportional to 257,111,147.97, 354,835,266.30 and 145,621,821.33 is: 200,970,506.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,111,147.97 : 354,835,266.30 = 145,621,821.33 : x
  2. Step 2: Convert to fraction form
    257,111,147.97/354,835,266.30 = 145,621,821.33/x
  3. Step 3: Cross multiply
    257,111,147.97x = 354,835,266.30 × 145,621,821.33
  4. Step 4: Simplify right side
    257,111,147.97x = 51,671,757,750,721,576
  5. Step 5: Solve for x
    x = 51,671,757,750,721,576/257,111,147.97
  6. Step 6: Final answer
    x = 200,970,506.95

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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.