Home / 420,630,187.20-580,471,459.50-229,895,057.42

Finding the Fourth Proportional to 420,630,187.20, 580,471,459.50 and 229,895,057.42

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Solution

The fourth proportional to 420,630,187.20, 580,471,459.50 and 229,895,057.42 is: 317,256,163.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,630,187.20 : 580,471,459.50 = 229,895,057.42 : x
  2. Step 2: Convert to fraction form
    420,630,187.20/580,471,459.50 = 229,895,057.42/x
  3. Step 3: Cross multiply
    420,630,187.20x = 580,471,459.50 × 229,895,057.42
  4. Step 4: Simplify right side
    420,630,187.20x = 133,447,519,514,692,560
  5. Step 5: Solve for x
    x = 133,447,519,514,692,560/420,630,187.20
  6. Step 6: Final answer
    x = 317,256,163.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.