Finding the Fourth Proportional to 5,425,409.80, 8,138,114.70 and 1,638,497.80
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Solution
The fourth proportional to 5,425,409.80, 8,138,114.70 and 1,638,497.80 is: 2,457,746.70
Step by Step Solution
- Step 1: Write the proportion equation
5,425,409.80 : 8,138,114.70 = 1,638,497.80 : x - Step 2: Convert to fraction form
5,425,409.80/8,138,114.70 = 1,638,497.80/x - Step 3: Cross multiply
5,425,409.80x = 8,138,114.70 × 1,638,497.80 - Step 4: Simplify right side
5,425,409.80x = 13,334,283,032,097.66 - Step 5: Solve for x
x = 13,334,283,032,097.66/5,425,409.80 - Step 6: Final answer
x = 2,457,746.70
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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.