Finding the Fourth Proportional to 20,155,097.12, 27,813,768.40 and 11,334,545.80
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Solution
The fourth proportional to 20,155,097.12, 27,813,768.40 and 11,334,545.80 is: 15,641,523.83
Step by Step Solution
- Step 1: Write the proportion equation
20,155,097.12 : 27,813,768.40 = 11,334,545.80 : x - Step 2: Convert to fraction form
20,155,097.12/27,813,768.40 = 11,334,545.80/x - Step 3: Cross multiply
20,155,097.12x = 27,813,768.40 × 11,334,545.80 - Step 4: Simplify right side
20,155,097.12x = 315,256,431,800,392.75 - Step 5: Solve for x
x = 315,256,431,800,392.75/20,155,097.12 - Step 6: Final answer
x = 15,641,523.83
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.