Home / 215,780,413.60-323,670,620.40-214,436,720.80

Finding the Fourth Proportional to 215,780,413.60, 323,670,620.40 and 214,436,720.80

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Solution

The fourth proportional to 215,780,413.60, 323,670,620.40 and 214,436,720.80 is: 321,655,081.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,780,413.60 : 323,670,620.40 = 214,436,720.80 : x
  2. Step 2: Convert to fraction form
    215,780,413.60/323,670,620.40 = 214,436,720.80/x
  3. Step 3: Cross multiply
    215,780,413.60x = 323,670,620.40 × 214,436,720.80
  4. Step 4: Simplify right side
    215,780,413.60x = 69,406,866,457,877,584
  5. Step 5: Solve for x
    x = 69,406,866,457,877,584/215,780,413.60
  6. Step 6: Final answer
    x = 321,655,081.20

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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.