Finding the Fourth Proportional to 276,015,849.48, 413,979,898.14 and 91,768,000.68
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Solution
The fourth proportional to 276,015,849.48, 413,979,898.14 and 91,768,000.68 is: 137,637,413.38
Step by Step Solution
- Step 1: Write the proportion equation
276,015,849.48 : 413,979,898.14 = 91,768,000.68 : x - Step 2: Convert to fraction form
276,015,849.48/413,979,898.14 = 91,768,000.68/x - Step 3: Cross multiply
276,015,849.48x = 413,979,898.14 × 91,768,000.68 - Step 4: Simplify right side
276,015,849.48x = 37,990,107,574,017,856 - Step 5: Solve for x
x = 37,990,107,574,017,856/276,015,849.48 - Step 6: Final answer
x = 137,637,413.38
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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.