Finding the Fourth Proportional to 18,255,851.06, 27,343,413.57 and 12,484,908.38
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Solution
The fourth proportional to 18,255,851.06, 27,343,413.57 and 12,484,908.38 is: 18,699,758.89
Step by Step Solution
- Step 1: Write the proportion equation
18,255,851.06 : 27,343,413.57 = 12,484,908.38 : x - Step 2: Convert to fraction form
18,255,851.06/27,343,413.57 = 12,484,908.38/x - Step 3: Cross multiply
18,255,851.06x = 27,343,413.57 × 12,484,908.38 - Step 4: Simplify right side
18,255,851.06x = 341,380,013,217,898.75 - Step 5: Solve for x
x = 341,380,013,217,898.75/18,255,851.06 - Step 6: Final answer
x = 18,699,758.89
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.