Home / 518,621,379.04-777,933,380.76-211,913,491.96

Finding the Fourth Proportional to 518,621,379.04, 777,933,380.76 and 211,913,491.96

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Solution

The fourth proportional to 518,621,379.04, 777,933,380.76 and 211,913,491.96 is: 317,870,774.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,621,379.04 : 777,933,380.76 = 211,913,491.96 : x
  2. Step 2: Convert to fraction form
    518,621,379.04/777,933,380.76 = 211,913,491.96/x
  3. Step 3: Cross multiply
    518,621,379.04x = 777,933,380.76 × 211,913,491.96
  4. Step 4: Simplify right side
    518,621,379.04x = 164,854,579,229,099,872
  5. Step 5: Solve for x
    x = 164,854,579,229,099,872/518,621,379.04
  6. Step 6: Final answer
    x = 317,870,774.12

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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.