Home / 419,903,999.70-629,855,999.55-236,237,990.10

Finding the Fourth Proportional to 419,903,999.70, 629,855,999.55 and 236,237,990.10

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Solution

The fourth proportional to 419,903,999.70, 629,855,999.55 and 236,237,990.10 is: 354,356,985.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,903,999.70 : 629,855,999.55 = 236,237,990.10 : x
  2. Step 2: Convert to fraction form
    419,903,999.70/629,855,999.55 = 236,237,990.10/x
  3. Step 3: Cross multiply
    419,903,999.70x = 629,855,999.55 × 236,237,990.10
  4. Step 4: Simplify right side
    419,903,999.70x = 148,795,915,386,118,496
  5. Step 5: Solve for x
    x = 148,795,915,386,118,496/419,903,999.70
  6. Step 6: Final answer
    x = 354,356,985.15

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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.