Finding the Fourth Proportional to 384,197,613.66, 530,192,878.38 and 207,985,603.14
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Solution
The fourth proportional to 384,197,613.66, 530,192,878.38 and 207,985,603.14 is: 287,020,225.19
Step by Step Solution
- Step 1: Write the proportion equation
384,197,613.66 : 530,192,878.38 = 207,985,603.14 : x - Step 2: Convert to fraction form
384,197,613.66/530,192,878.38 = 207,985,603.14/x - Step 3: Cross multiply
384,197,613.66x = 530,192,878.38 × 207,985,603.14 - Step 4: Simplify right side
384,197,613.66x = 110,272,485,590,396,960 - Step 5: Solve for x
x = 110,272,485,590,396,960/384,197,613.66 - Step 6: Final answer
x = 287,020,225.19
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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.