Home / 281,300,342.40-421,950,513.60-189,467,337.60

Finding the Fourth Proportional to 281,300,342.40, 421,950,513.60 and 189,467,337.60

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Solution

The fourth proportional to 281,300,342.40, 421,950,513.60 and 189,467,337.60 is: 284,201,006.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,300,342.40 : 421,950,513.60 = 189,467,337.60 : x
  2. Step 2: Convert to fraction form
    281,300,342.40/421,950,513.60 = 189,467,337.60/x
  3. Step 3: Cross multiply
    281,300,342.40x = 421,950,513.60 × 189,467,337.60
  4. Step 4: Simplify right side
    281,300,342.40x = 79,945,840,410,744,592
  5. Step 5: Solve for x
    x = 79,945,840,410,744,592/281,300,342.40
  6. Step 6: Final answer
    x = 284,201,006.40

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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.