Home / 281,300,345.40-421,950,518.10-189,467,340.60

Finding the Fourth Proportional to 281,300,345.40, 421,950,518.10 and 189,467,340.60

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Solution

The fourth proportional to 281,300,345.40, 421,950,518.10 and 189,467,340.60 is: 284,201,010.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,300,345.40 : 421,950,518.10 = 189,467,340.60 : x
  2. Step 2: Convert to fraction form
    281,300,345.40/421,950,518.10 = 189,467,340.60/x
  3. Step 3: Cross multiply
    281,300,345.40x = 421,950,518.10 × 189,467,340.60
  4. Step 4: Simplify right side
    281,300,345.40x = 79,945,842,529,199,168
  5. Step 5: Solve for x
    x = 79,945,842,529,199,168/281,300,345.40
  6. Step 6: Final answer
    x = 284,201,010.90

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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.