Finding the Fourth Proportional to 21,361,015.85, 29,478,292.18 and 11,571,460.02
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Solution
The fourth proportional to 21,361,015.85, 29,478,292.18 and 11,571,460.02 is: 15,968,663.75
Step by Step Solution
- Step 1: Write the proportion equation
21,361,015.85 : 29,478,292.18 = 11,571,460.02 : x - Step 2: Convert to fraction form
21,361,015.85/29,478,292.18 = 11,571,460.02/x - Step 3: Cross multiply
21,361,015.85x = 29,478,292.18 × 11,571,460.02 - Step 4: Simplify right side
21,361,015.85x = 341,106,879,389,819.94 - Step 5: Solve for x
x = 341,106,879,389,819.94/21,361,015.85 - Step 6: Final answer
x = 15,968,663.75
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.