Finding the Fourth Proportional to 1,246,368,836,783.60, 1,867,118,474,505.20 and 858,626,473,448.80
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Solution
The fourth proportional to 1,246,368,836,783.60, 1,867,118,474,505.20 and 858,626,473,448.80 is: 1,286,262,383,944.58
Step by Step Solution
- Step 1: Write the proportion equation
1,246,368,836,783.60 : 1,867,118,474,505.20 = 858,626,473,448.80 : x - Step 2: Convert to fraction form
1,246,368,836,783.60/1,867,118,474,505.20 = 858,626,473,448.80/x - Step 3: Cross multiply
1,246,368,836,783.60x = 1,867,118,474,505.20 × 858,626,473,448.80 - Step 4: Simplify right side
1,246,368,836,783.60x = 1,603,157,351,275,503,221,211,136 - Step 5: Solve for x
x = 1,603,157,351,275,503,221,211,136/1,246,368,836,783.60 - Step 6: Final answer
x = 1,286,262,383,944.58
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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.