Finding the Fourth Proportional to 5,356,858.02, 7,392,518.37 and 2,909,492.70
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Solution
The fourth proportional to 5,356,858.02, 7,392,518.37 and 2,909,492.70 is: 4,015,129.42
Step by Step Solution
- Step 1: Write the proportion equation
5,356,858.02 : 7,392,518.37 = 2,909,492.70 : x - Step 2: Convert to fraction form
5,356,858.02/7,392,518.37 = 2,909,492.70/x - Step 3: Cross multiply
5,356,858.02x = 7,392,518.37 × 2,909,492.70 - Step 4: Simplify right side
5,356,858.02x = 21,508,478,232,130.90 - Step 5: Solve for x
x = 21,508,478,232,130.90/5,356,858.02 - Step 6: Final answer
x = 4,015,129.42
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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.