Finding the Fourth Proportional to 20,874,646.09, 31,312,953.30 and 17,224,605.97
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Solution
The fourth proportional to 20,874,646.09, 31,312,953.30 and 17,224,605.97 is: 25,837,721.03
Step by Step Solution
- Step 1: Write the proportion equation
20,874,646.09 : 31,312,953.30 = 17,224,605.97 : x - Step 2: Convert to fraction form
20,874,646.09/31,312,953.30 = 17,224,605.97/x - Step 3: Cross multiply
20,874,646.09x = 31,312,953.30 × 17,224,605.97 - Step 4: Simplify right side
20,874,646.09x = 539,353,282,349,511.19 - Step 5: Solve for x
x = 539,353,282,349,511.19/20,874,646.09 - Step 6: Final answer
x = 25,837,721.03
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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.