Home / 448,420,506.45-672,630,759.68-409,678,457.55

Finding the Fourth Proportional to 448,420,506.45, 672,630,759.68 and 409,678,457.55

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Solution

The fourth proportional to 448,420,506.45, 672,630,759.68 and 409,678,457.55 is: 614,517,686.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,420,506.45 : 672,630,759.68 = 409,678,457.55 : x
  2. Step 2: Convert to fraction form
    448,420,506.45/672,630,759.68 = 409,678,457.55/x
  3. Step 3: Cross multiply
    448,420,506.45x = 672,630,759.68 × 409,678,457.55
  4. Step 4: Simplify right side
    448,420,506.45x = 275,562,332,124,338,720
  5. Step 5: Solve for x
    x = 275,562,332,124,338,720/448,420,506.45
  6. Step 6: Final answer
    x = 614,517,686.33

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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.