Finding the Fourth Proportional to 380,219,427.84, 524,689,234.44 and 215,203,454.40
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Solution
The fourth proportional to 380,219,427.84, 524,689,234.44 and 215,203,454.40 is: 296,973,083.09
Step by Step Solution
- Step 1: Write the proportion equation
380,219,427.84 : 524,689,234.44 = 215,203,454.40 : x - Step 2: Convert to fraction form
380,219,427.84/524,689,234.44 = 215,203,454.40/x - Step 3: Cross multiply
380,219,427.84x = 524,689,234.44 × 215,203,454.40 - Step 4: Simplify right side
380,219,427.84x = 112,914,935,737,979,456 - Step 5: Solve for x
x = 112,914,935,737,979,456/380,219,427.84 - Step 6: Final answer
x = 296,973,083.09
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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.