Finding the Fourth Proportional to 1,105,120,655.16, 1,656,863,763.93 and 668,324,231.97
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Solution
The fourth proportional to 1,105,120,655.16, 1,656,863,763.93 and 668,324,231.97 is: 1,001,992,133.02
Step by Step Solution
- Step 1: Write the proportion equation
1,105,120,655.16 : 1,656,863,763.93 = 668,324,231.97 : x - Step 2: Convert to fraction form
1,105,120,655.16/1,656,863,763.93 = 668,324,231.97/x - Step 3: Cross multiply
1,105,120,655.16x = 1,656,863,763.93 × 668,324,231.97 - Step 4: Simplify right side
1,105,120,655.16x = 1,107,322,202,507,440,768 - Step 5: Solve for x
x = 1,107,322,202,507,440,768/1,105,120,655.16 - Step 6: Final answer
x = 1,001,992,133.02
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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.