Finding the Fourth Proportional to 384,197,259.09, 530,192,388.74 and 207,985,248.75
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Solution
The fourth proportional to 384,197,259.09, 530,192,388.74 and 207,985,248.75 is: 287,019,735.95
Step by Step Solution
- Step 1: Write the proportion equation
384,197,259.09 : 530,192,388.74 = 207,985,248.75 : x - Step 2: Convert to fraction form
384,197,259.09/530,192,388.74 = 207,985,248.75/x - Step 3: Cross multiply
384,197,259.09x = 530,192,388.74 × 207,985,248.75 - Step 4: Simplify right side
384,197,259.09x = 110,272,195,856,405,680 - Step 5: Solve for x
x = 110,272,195,856,405,680/384,197,259.09 - Step 6: Final answer
x = 287,019,735.95
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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.