Finding the Fourth Proportional to 17,393,121.30, 26,089,681.95 and 12,291,287.70
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Solution
The fourth proportional to 17,393,121.30, 26,089,681.95 and 12,291,287.70 is: 18,436,931.55
Step by Step Solution
- Step 1: Write the proportion equation
17,393,121.30 : 26,089,681.95 = 12,291,287.70 : x - Step 2: Convert to fraction form
17,393,121.30/26,089,681.95 = 12,291,287.70/x - Step 3: Cross multiply
17,393,121.30x = 26,089,681.95 × 12,291,287.70 - Step 4: Simplify right side
17,393,121.30x = 320,675,786,848,947 - Step 5: Solve for x
x = 320,675,786,848,947/17,393,121.30 - Step 6: Final answer
x = 18,436,931.55
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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.