Finding the Fourth Proportional to 21,513,348.74, 29,687,557.42 and 11,723,584.27
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Solution
The fourth proportional to 21,513,348.74, 29,687,557.42 and 11,723,584.27 is: 16,178,075.55
Step by Step Solution
- Step 1: Write the proportion equation
21,513,348.74 : 29,687,557.42 = 11,723,584.27 : x - Step 2: Convert to fraction form
21,513,348.74/29,687,557.42 = 11,723,584.27/x - Step 3: Cross multiply
21,513,348.74x = 29,687,557.42 × 11,723,584.27 - Step 4: Simplify right side
21,513,348.74x = 348,044,581,183,833.81 - Step 5: Solve for x
x = 348,044,581,183,833.81/21,513,348.74 - Step 6: Final answer
x = 16,178,075.55
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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.