Finding the Fourth Proportional to 6,909,812.88, 10,366,235.64 and 2,117,862.60
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Solution
The fourth proportional to 6,909,812.88, 10,366,235.64 and 2,117,862.60 is: 3,177,258.65
Step by Step Solution
- Step 1: Write the proportion equation
6,909,812.88 : 10,366,235.64 = 2,117,862.60 : x - Step 2: Convert to fraction form
6,909,812.88/10,366,235.64 = 2,117,862.60/x - Step 3: Cross multiply
6,909,812.88x = 10,366,235.64 × 2,117,862.60 - Step 4: Simplify right side
6,909,812.88x = 21,954,262,764,743.07 - Step 5: Solve for x
x = 21,954,262,764,743.07/6,909,812.88 - Step 6: Final answer
x = 3,177,258.65
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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.