Home / 445,844,609.40-668,766,914.10-290,876,413.80

Finding the Fourth Proportional to 445,844,609.40, 668,766,914.10 and 290,876,413.80

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Solution

The fourth proportional to 445,844,609.40, 668,766,914.10 and 290,876,413.80 is: 436,314,620.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,844,609.40 : 668,766,914.10 = 290,876,413.80 : x
  2. Step 2: Convert to fraction form
    445,844,609.40/668,766,914.10 = 290,876,413.80/x
  3. Step 3: Cross multiply
    445,844,609.40x = 668,766,914.10 × 290,876,413.80
  4. Step 4: Simplify right side
    445,844,609.40x = 194,528,521,641,500,672
  5. Step 5: Solve for x
    x = 194,528,521,641,500,672/445,844,609.40
  6. Step 6: Final answer
    x = 436,314,620.70

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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.