Home / 28,772,578.80-43,088,009.40-13,608,795.60

Finding the Fourth Proportional to 28,772,578.80, 43,088,009.40 and 13,608,795.60

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Solution

The fourth proportional to 28,772,578.80, 43,088,009.40 and 13,608,795.60 is: 20,379,678.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,772,578.80 : 43,088,009.40 = 13,608,795.60 : x
  2. Step 2: Convert to fraction form
    28,772,578.80/43,088,009.40 = 13,608,795.60/x
  3. Step 3: Cross multiply
    28,772,578.80x = 43,088,009.40 × 13,608,795.60
  4. Step 4: Simplify right side
    28,772,578.80x = 586,375,912,735,478.62
  5. Step 5: Solve for x
    x = 586,375,912,735,478.62/28,772,578.80
  6. Step 6: Final answer
    x = 20,379,678.75

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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.