Home / 621,108,003.40-931,662,005.10-190,230,512.20

Finding the Fourth Proportional to 621,108,003.40, 931,662,005.10 and 190,230,512.20

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Solution

The fourth proportional to 621,108,003.40, 931,662,005.10 and 190,230,512.20 is: 285,345,768.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,108,003.40 : 931,662,005.10 = 190,230,512.20 : x
  2. Step 2: Convert to fraction form
    621,108,003.40/931,662,005.10 = 190,230,512.20/x
  3. Step 3: Cross multiply
    621,108,003.40x = 931,662,005.10 × 190,230,512.20
  4. Step 4: Simplify right side
    621,108,003.40x = 177,230,540,427,452,000
  5. Step 5: Solve for x
    x = 177,230,540,427,452,000/621,108,003.40
  6. Step 6: Final answer
    x = 285,345,768.30

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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.