Home / 678,419,504.43-936,241,624.14-377,017,518.96

Finding the Fourth Proportional to 678,419,504.43, 936,241,624.14 and 377,017,518.96

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Solution

The fourth proportional to 678,419,504.43, 936,241,624.14 and 377,017,518.96 is: 520,296,795.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,419,504.43 : 936,241,624.14 = 377,017,518.96 : x
  2. Step 2: Convert to fraction form
    678,419,504.43/936,241,624.14 = 377,017,518.96/x
  3. Step 3: Cross multiply
    678,419,504.43x = 936,241,624.14 × 377,017,518.96
  4. Step 4: Simplify right side
    678,419,504.43x = 352,979,494,280,343,616
  5. Step 5: Solve for x
    x = 352,979,494,280,343,616/678,419,504.43
  6. Step 6: Final answer
    x = 520,296,795.68

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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.