Finding the Fourth Proportional to 472,394,374.80, 708,591,562.20 and 326,992,117.20
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Solution
The fourth proportional to 472,394,374.80, 708,591,562.20 and 326,992,117.20 is: 490,488,175.80
Step by Step Solution
- Step 1: Write the proportion equation
472,394,374.80 : 708,591,562.20 = 326,992,117.20 : x - Step 2: Convert to fraction form
472,394,374.80/708,591,562.20 = 326,992,117.20/x - Step 3: Cross multiply
472,394,374.80x = 708,591,562.20 × 326,992,117.20 - Step 4: Simplify right side
472,394,374.80x = 231,703,855,153,833,504 - Step 5: Solve for x
x = 231,703,855,153,833,504/472,394,374.80 - Step 6: Final answer
x = 490,488,175.80
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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.