Finding the Fourth Proportional to 13,493,330.76, 20,239,980.42 and 4,395,413.67
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Solution
The fourth proportional to 13,493,330.76, 20,239,980.42 and 4,395,413.67 is: 6,593,115.38
Step by Step Solution
- Step 1: Write the proportion equation
13,493,330.76 : 20,239,980.42 = 4,395,413.67 : x - Step 2: Convert to fraction form
13,493,330.76/20,239,980.42 = 4,395,413.67/x - Step 3: Cross multiply
13,493,330.76x = 20,239,980.42 × 4,395,413.67 - Step 4: Simplify right side
13,493,330.76x = 88,963,086,618,600.34 - Step 5: Solve for x
x = 88,963,086,618,600.34/13,493,330.76 - Step 6: Final answer
x = 6,593,115.38
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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.