Home / 448,420,509.45-672,630,764.18-409,678,460.55

Finding the Fourth Proportional to 448,420,509.45, 672,630,764.18 and 409,678,460.55

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Solution

The fourth proportional to 448,420,509.45, 672,630,764.18 and 409,678,460.55 is: 614,517,690.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,420,509.45 : 672,630,764.18 = 409,678,460.55 : x
  2. Step 2: Convert to fraction form
    448,420,509.45/672,630,764.18 = 409,678,460.55/x
  3. Step 3: Cross multiply
    448,420,509.45x = 672,630,764.18 × 409,678,460.55
  4. Step 4: Simplify right side
    448,420,509.45x = 275,562,335,985,784,064
  5. Step 5: Solve for x
    x = 275,562,335,985,784,064/448,420,509.45
  6. Step 6: Final answer
    x = 614,517,690.83

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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.