Finding the Fourth Proportional to 19,748,782.36, 27,241,402.68 and 13,043,156.08
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Solution
The fourth proportional to 19,748,782.36, 27,241,402.68 and 13,043,156.08 is: 17,991,684.78
Step by Step Solution
- Step 1: Write the proportion equation
19,748,782.36 : 27,241,402.68 = 13,043,156.08 : x - Step 2: Convert to fraction form
19,748,782.36/27,241,402.68 = 13,043,156.08/x - Step 3: Cross multiply
19,748,782.36x = 27,241,402.68 × 13,043,156.08 - Step 4: Simplify right side
19,748,782.36x = 355,313,866,993,370.31 - Step 5: Solve for x
x = 355,313,866,993,370.31/19,748,782.36 - Step 6: Final answer
x = 17,991,684.78
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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.