Home / 402,294,413.20-603,441,619.80-198,221,069.20

Finding the Fourth Proportional to 402,294,413.20, 603,441,619.80 and 198,221,069.20

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Solution

The fourth proportional to 402,294,413.20, 603,441,619.80 and 198,221,069.20 is: 297,331,603.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,294,413.20 : 603,441,619.80 = 198,221,069.20 : x
  2. Step 2: Convert to fraction form
    402,294,413.20/603,441,619.80 = 198,221,069.20/x
  3. Step 3: Cross multiply
    402,294,413.20x = 603,441,619.80 × 198,221,069.20
  4. Step 4: Simplify right side
    402,294,413.20x = 119,614,843,076,535,872
  5. Step 5: Solve for x
    x = 119,614,843,076,535,872/402,294,413.20
  6. Step 6: Final answer
    x = 297,331,603.80

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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.