Home / 455,045,708.80-682,568,563.20-442,291,124.80

Finding the Fourth Proportional to 455,045,708.80, 682,568,563.20 and 442,291,124.80

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Solution

The fourth proportional to 455,045,708.80, 682,568,563.20 and 442,291,124.80 is: 663,436,687.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,045,708.80 : 682,568,563.20 = 442,291,124.80 : x
  2. Step 2: Convert to fraction form
    455,045,708.80/682,568,563.20 = 442,291,124.80/x
  3. Step 3: Cross multiply
    455,045,708.80x = 682,568,563.20 × 442,291,124.80
  4. Step 4: Simplify right side
    455,045,708.80x = 301,894,017,570,847,936
  5. Step 5: Solve for x
    x = 301,894,017,570,847,936/455,045,708.80
  6. Step 6: Final answer
    x = 663,436,687.20

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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.