Home / 421,515,157.72-581,697,804.54-230,772,992.44

Finding the Fourth Proportional to 421,515,157.72, 581,697,804.54 and 230,772,992.44

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Solution

The fourth proportional to 421,515,157.72, 581,697,804.54 and 230,772,992.44 is: 318,470,500.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,515,157.72 : 581,697,804.54 = 230,772,992.44 : x
  2. Step 2: Convert to fraction form
    421,515,157.72/581,697,804.54 = 230,772,992.44/x
  3. Step 3: Cross multiply
    421,515,157.72x = 581,697,804.54 × 230,772,992.44
  4. Step 4: Simplify right side
    421,515,157.72x = 134,240,143,049,474,000
  5. Step 5: Solve for x
    x = 134,240,143,049,474,000/421,515,157.72
  6. Step 6: Final answer
    x = 318,470,500.03

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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.