Finding the Fourth Proportional to 1,393,769,503.60, 2,090,969,226.57 and 461,090,148.88
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Solution
The fourth proportional to 1,393,769,503.60, 2,090,969,226.57 and 461,090,148.88 is: 691,739,422.83
Step by Step Solution
- Step 1: Write the proportion equation
1,393,769,503.60 : 2,090,969,226.57 = 461,090,148.88 : x - Step 2: Convert to fraction form
1,393,769,503.60/2,090,969,226.57 = 461,090,148.88/x - Step 3: Cross multiply
1,393,769,503.60x = 2,090,969,226.57 × 461,090,148.88 - Step 4: Simplify right side
1,393,769,503.60x = 964,125,311,982,659,712 - Step 5: Solve for x
x = 964,125,311,982,659,712/1,393,769,503.60 - Step 6: Final answer
x = 691,739,422.83
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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.