Home / 380,094,792.21-570,357,867.83-205,215,497.37

Finding the Fourth Proportional to 380,094,792.21, 570,357,867.83 and 205,215,497.37

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Solution

The fourth proportional to 380,094,792.21, 570,357,867.83 and 205,215,497.37 is: 307,939,692.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,094,792.21 : 570,357,867.83 = 205,215,497.37 : x
  2. Step 2: Convert to fraction form
    380,094,792.21/570,357,867.83 = 205,215,497.37/x
  3. Step 3: Cross multiply
    380,094,792.21x = 570,357,867.83 × 205,215,497.37
  4. Step 4: Simplify right side
    380,094,792.21x = 117,046,273,524,600,112
  5. Step 5: Solve for x
    x = 117,046,273,524,600,112/380,094,792.21
  6. Step 6: Final answer
    x = 307,939,692.74

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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.