Home / 380,193,145.58-570,354,100.77-131,130,774.43

Finding the Fourth Proportional to 380,193,145.58, 570,354,100.77 and 131,130,774.43

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Solution

The fourth proportional to 380,193,145.58, 570,354,100.77 and 131,130,774.43 is: 196,718,367.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,193,145.58 : 570,354,100.77 = 131,130,774.43 : x
  2. Step 2: Convert to fraction form
    380,193,145.58/570,354,100.77 = 131,130,774.43/x
  3. Step 3: Cross multiply
    380,193,145.58x = 570,354,100.77 × 131,130,774.43
  4. Step 4: Simplify right side
    380,193,145.58x = 74,790,974,933,296,368
  5. Step 5: Solve for x
    x = 74,790,974,933,296,368/380,193,145.58
  6. Step 6: Final answer
    x = 196,718,367.50

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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.