Finding the Fourth Proportional to 1,396,417,957.16, 2,095,137,696.35 and 649,789,817.67
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Solution
The fourth proportional to 1,396,417,957.16, 2,095,137,696.35 and 649,789,817.67 is: 974,922,396.79
Step by Step Solution
- Step 1: Write the proportion equation
1,396,417,957.16 : 2,095,137,696.35 = 649,789,817.67 : x - Step 2: Convert to fraction form
1,396,417,957.16/2,095,137,696.35 = 649,789,817.67/x - Step 3: Cross multiply
1,396,417,957.16x = 2,095,137,696.35 × 649,789,817.67 - Step 4: Simplify right side
1,396,417,957.16x = 1,361,399,141,706,434,560 - Step 5: Solve for x
x = 1,361,399,141,706,434,560/1,396,417,957.16 - Step 6: Final answer
x = 974,922,396.79
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.