Finding the Fourth Proportional to 607,394,833.70, 912,545,736.17 and 389,472,135.62
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Solution
The fourth proportional to 607,394,833.70, 912,545,736.17 and 389,472,135.62 is: 585,140,203.70
Step by Step Solution
- Step 1: Write the proportion equation
607,394,833.70 : 912,545,736.17 = 389,472,135.62 : x - Step 2: Convert to fraction form
607,394,833.70/912,545,736.17 = 389,472,135.62/x - Step 3: Cross multiply
607,394,833.70x = 912,545,736.17 × 389,472,135.62 - Step 4: Simplify right side
607,394,833.70x = 355,411,136,717,054,976 - Step 5: Solve for x
x = 355,411,136,717,054,976/607,394,833.70 - Step 6: Final answer
x = 585,140,203.70
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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.