Home / 621,121,515.40-931,682,273.10-190,244,024.20

Finding the Fourth Proportional to 621,121,515.40, 931,682,273.10 and 190,244,024.20

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Solution

The fourth proportional to 621,121,515.40, 931,682,273.10 and 190,244,024.20 is: 285,366,036.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,121,515.40 : 931,682,273.10 = 190,244,024.20 : x
  2. Step 2: Convert to fraction form
    621,121,515.40/931,682,273.10 = 190,244,024.20/x
  3. Step 3: Cross multiply
    621,121,515.40x = 931,682,273.10 × 190,244,024.20
  4. Step 4: Simplify right side
    621,121,515.40x = 177,246,984,910,347,392
  5. Step 5: Solve for x
    x = 177,246,984,910,347,392/621,121,515.40
  6. Step 6: Final answer
    x = 285,366,036.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.