Finding the Fourth Proportional to 378,638,194.31, 568,137,160.20 and 262,232,686.26
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Solution
The fourth proportional to 378,638,194.31, 568,137,160.20 and 262,232,686.26 is: 393,473,600.72
Step by Step Solution
- Step 1: Write the proportion equation
378,638,194.31 : 568,137,160.20 = 262,232,686.26 : x - Step 2: Convert to fraction form
378,638,194.31/568,137,160.20 = 262,232,686.26/x - Step 3: Cross multiply
378,638,194.31x = 568,137,160.20 × 262,232,686.26 - Step 4: Simplify right side
378,638,194.31x = 148,984,133,683,373,952 - Step 5: Solve for x
x = 148,984,133,683,373,952/378,638,194.31 - Step 6: Final answer
x = 393,473,600.72
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.