Home / 448,420,501.70-672,630,752.55-409,678,452.80

Finding the Fourth Proportional to 448,420,501.70, 672,630,752.55 and 409,678,452.80

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Solution

The fourth proportional to 448,420,501.70, 672,630,752.55 and 409,678,452.80 is: 614,517,679.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,420,501.70 : 672,630,752.55 = 409,678,452.80 : x
  2. Step 2: Convert to fraction form
    448,420,501.70/672,630,752.55 = 409,678,452.80/x
  3. Step 3: Cross multiply
    448,420,501.70x = 672,630,752.55 × 409,678,452.80
  4. Step 4: Simplify right side
    448,420,501.70x = 275,562,326,010,383,648
  5. Step 5: Solve for x
    x = 275,562,326,010,383,648/448,420,501.70
  6. Step 6: Final answer
    x = 614,517,679.20

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1.5x scale

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.