Finding the Fourth Proportional to 380,202,113.34, 524,588,980.35 and 215,189,682.84
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Solution
The fourth proportional to 380,202,113.34, 524,588,980.35 and 215,189,682.84 is: 296,910,859.62
Step by Step Solution
- Step 1: Write the proportion equation
380,202,113.34 : 524,588,980.35 = 215,189,682.84 : x - Step 2: Convert to fraction form
380,202,113.34/524,588,980.35 = 215,189,682.84/x - Step 3: Cross multiply
380,202,113.34x = 524,588,980.35 × 215,189,682.84 - Step 4: Simplify right side
380,202,113.34x = 112,886,136,302,875,504 - Step 5: Solve for x
x = 112,886,136,302,875,504/380,202,113.34 - Step 6: Final answer
x = 296,910,859.62
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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.