Finding the Fourth Proportional to 7,128,338.79, 10,688,970.69 and 2,270,012.16
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Solution
The fourth proportional to 7,128,338.79, 10,688,970.69 and 2,270,012.16 is: 3,403,891.73
Step by Step Solution
- Step 1: Write the proportion equation
7,128,338.79 : 10,688,970.69 = 2,270,012.16 : x - Step 2: Convert to fraction form
7,128,338.79/10,688,970.69 = 2,270,012.16/x - Step 3: Cross multiply
7,128,338.79x = 10,688,970.69 × 2,270,012.16 - Step 4: Simplify right side
7,128,338.79x = 24,264,093,444,183.59 - Step 5: Solve for x
x = 24,264,093,444,183.59/7,128,338.79 - Step 6: Final answer
x = 3,403,891.73
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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.