Finding the Fourth Proportional to 144,800,463.68, 199,828,581.44 and 78,725,407.68
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Solution
The fourth proportional to 144,800,463.68, 199,828,581.44 and 78,725,407.68 is: 108,643,205.55
Step by Step Solution
- Step 1: Write the proportion equation
144,800,463.68 : 199,828,581.44 = 78,725,407.68 : x - Step 2: Convert to fraction form
144,800,463.68/199,828,581.44 = 78,725,407.68/x - Step 3: Cross multiply
144,800,463.68x = 199,828,581.44 × 78,725,407.68 - Step 4: Simplify right side
144,800,463.68x = 15,731,586,539,980,082 - Step 5: Solve for x
x = 15,731,586,539,980,082/144,800,463.68 - Step 6: Final answer
x = 108,643,205.55
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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.