Finding the Fourth Proportional to 1,326,517,474.09, 1,988,727,787.63 and 662,190,543.85
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Solution
The fourth proportional to 1,326,517,474.09, 1,988,727,787.63 and 662,190,543.85 is: 992,762,448.28
Step by Step Solution
- Step 1: Write the proportion equation
1,326,517,474.09 : 1,988,727,787.63 = 662,190,543.85 : x - Step 2: Convert to fraction form
1,326,517,474.09/1,988,727,787.63 = 662,190,543.85/x - Step 3: Cross multiply
1,326,517,474.09x = 1,988,727,787.63 × 662,190,543.85 - Step 4: Simplify right side
1,326,517,474.09x = 1,316,916,735,260,317,184 - Step 5: Solve for x
x = 1,316,916,735,260,317,184/1,326,517,474.09 - Step 6: Final answer
x = 992,762,448.28
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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.