Finding the Fourth Proportional to 384,136,369.92, 530,108,115.84 and 207,924,330.24
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Solution
The fourth proportional to 384,136,369.92, 530,108,115.84 and 207,924,330.24 is: 286,935,535.33
Step by Step Solution
- Step 1: Write the proportion equation
384,136,369.92 : 530,108,115.84 = 207,924,330.24 : x - Step 2: Convert to fraction form
384,136,369.92/530,108,115.84 = 207,924,330.24/x - Step 3: Cross multiply
384,136,369.92x = 530,108,115.84 × 207,924,330.24 - Step 4: Simplify right side
384,136,369.92x = 110,222,374,940,820,336 - Step 5: Solve for x
x = 110,222,374,940,820,336/384,136,369.92 - Step 6: Final answer
x = 286,935,535.33
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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.