Finding the Fourth Proportional to 13,917,533.49, 20,875,621.19 and 5,165,514.99
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Solution
The fourth proportional to 13,917,533.49, 20,875,621.19 and 5,165,514.99 is: 7,748,020.45
Step by Step Solution
- Step 1: Write the proportion equation
13,917,533.49 : 20,875,621.19 = 5,165,514.99 : x - Step 2: Convert to fraction form
13,917,533.49/20,875,621.19 = 5,165,514.99/x - Step 3: Cross multiply
13,917,533.49x = 20,875,621.19 × 5,165,514.99 - Step 4: Simplify right side
13,917,533.49x = 107,833,334,156,679.06 - Step 5: Solve for x
x = 107,833,334,156,679.06/13,917,533.49 - Step 6: Final answer
x = 7,748,020.45
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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.