Finding the Fourth Proportional to 20,043,349.38, 30,065,124.19 and 7,089,511.99
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Solution
The fourth proportional to 20,043,349.38, 30,065,124.19 and 7,089,511.99 is: 10,634,303.40
Step by Step Solution
- Step 1: Write the proportion equation
20,043,349.38 : 30,065,124.19 = 7,089,511.99 : x - Step 2: Convert to fraction form
20,043,349.38/30,065,124.19 = 7,089,511.99/x - Step 3: Cross multiply
20,043,349.38x = 30,065,124.19 × 7,089,511.99 - Step 4: Simplify right side
20,043,349.38x = 213,147,058,402,622.38 - Step 5: Solve for x
x = 213,147,058,402,622.38/20,043,349.38 - Step 6: Final answer
x = 10,634,303.40
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1.5x scale
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.