Finding the Fourth Proportional to 10,158,782.09, 14,015,128.65 and 5,805,533.03
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Solution
The fourth proportional to 10,158,782.09, 14,015,128.65 and 5,805,533.03 is: 8,009,355.02
Step by Step Solution
- Step 1: Write the proportion equation
10,158,782.09 : 14,015,128.65 = 5,805,533.03 : x - Step 2: Convert to fraction form
10,158,782.09/14,015,128.65 = 5,805,533.03/x - Step 3: Cross multiply
10,158,782.09x = 14,015,128.65 × 5,805,533.03 - Step 4: Simplify right side
10,158,782.09x = 81,365,292,297,274.31 - Step 5: Solve for x
x = 81,365,292,297,274.31/10,158,782.09 - Step 6: Final answer
x = 8,009,355.02
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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.