Finding the Fourth Proportional to 1,768,340,891.44, 2,440,318,016.91 and 964,585,904.68
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Solution
The fourth proportional to 1,768,340,891.44, 2,440,318,016.91 and 964,585,904.68 is: 1,331,132,686.83
Step by Step Solution
- Step 1: Write the proportion equation
1,768,340,891.44 : 2,440,318,016.91 = 964,585,904.68 : x - Step 2: Convert to fraction form
1,768,340,891.44/2,440,318,016.91 = 964,585,904.68/x - Step 3: Cross multiply
1,768,340,891.44x = 2,440,318,016.91 × 964,585,904.68 - Step 4: Simplify right side
1,768,340,891.44x = 2,353,896,362,048,035,840 - Step 5: Solve for x
x = 2,353,896,362,048,035,840/1,768,340,891.44 - Step 6: Final answer
x = 1,331,132,686.83
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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.