Home / 420,140,882.80-630,860,130.60-229,037,906.80

Finding the Fourth Proportional to 420,140,882.80, 630,860,130.60 and 229,037,906.80

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Solution

The fourth proportional to 420,140,882.80, 630,860,130.60 and 229,037,906.80 is: 343,910,554.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,140,882.80 : 630,860,130.60 = 229,037,906.80 : x
  2. Step 2: Convert to fraction form
    420,140,882.80/630,860,130.60 = 229,037,906.80/x
  3. Step 3: Cross multiply
    420,140,882.80x = 630,860,130.60 × 229,037,906.80
  4. Step 4: Simplify right side
    420,140,882.80x = 144,490,883,796,198,656
  5. Step 5: Solve for x
    x = 144,490,883,796,198,656/420,140,882.80
  6. Step 6: Final answer
    x = 343,910,554.08

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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.