Home / 383,733,870.72-575,345,131.20-211,291,895.04

Finding the Fourth Proportional to 383,733,870.72, 575,345,131.20 and 211,291,895.04

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Solution

The fourth proportional to 383,733,870.72, 575,345,131.20 and 211,291,895.04 is: 316,797,062.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,733,870.72 : 575,345,131.20 = 211,291,895.04 : x
  2. Step 2: Convert to fraction form
    383,733,870.72/575,345,131.20 = 211,291,895.04/x
  3. Step 3: Cross multiply
    383,733,870.72x = 575,345,131.20 × 211,291,895.04
  4. Step 4: Simplify right side
    383,733,870.72x = 121,565,763,073,285,440
  5. Step 5: Solve for x
    x = 121,565,763,073,285,440/383,733,870.72
  6. Step 6: Final answer
    x = 316,797,062.62

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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.