Home / 383,733,868.72-575,345,128.20-211,291,893.04

Finding the Fourth Proportional to 383,733,868.72, 575,345,128.20 and 211,291,893.04

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Solution

The fourth proportional to 383,733,868.72, 575,345,128.20 and 211,291,893.04 is: 316,797,059.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,733,868.72 : 575,345,128.20 = 211,291,893.04 : x
  2. Step 2: Convert to fraction form
    383,733,868.72/575,345,128.20 = 211,291,893.04/x
  3. Step 3: Cross multiply
    383,733,868.72x = 575,345,128.20 × 211,291,893.04
  4. Step 4: Simplify right side
    383,733,868.72x = 121,565,761,288,719,488
  5. Step 5: Solve for x
    x = 121,565,761,288,719,488/383,733,868.72
  6. Step 6: Final answer
    x = 316,797,059.62

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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.