Home / 640,475,324.41-960,844,018.51-220,242,118.90

Finding the Fourth Proportional to 640,475,324.41, 960,844,018.51 and 220,242,118.90

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Solution

The fourth proportional to 640,475,324.41, 960,844,018.51 and 220,242,118.90 is: 330,408,236.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,475,324.41 : 960,844,018.51 = 220,242,118.90 : x
  2. Step 2: Convert to fraction form
    640,475,324.41/960,844,018.51 = 220,242,118.90/x
  3. Step 3: Cross multiply
    640,475,324.41x = 960,844,018.51 × 220,242,118.90
  4. Step 4: Simplify right side
    640,475,324.41x = 211,618,322,566,080,512
  5. Step 5: Solve for x
    x = 211,618,322,566,080,512/640,475,324.41
  6. Step 6: Final answer
    x = 330,408,236.67

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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.