Finding the Fourth Proportional to 1,268,863,766.68, 1,751,037,036.84 and 711,910,449.40
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Solution
The fourth proportional to 1,268,863,766.68, 1,751,037,036.84 and 711,910,449.40 is: 982,439,247.26
Step by Step Solution
- Step 1: Write the proportion equation
1,268,863,766.68 : 1,751,037,036.84 = 711,910,449.40 : x - Step 2: Convert to fraction form
1,268,863,766.68/1,751,037,036.84 = 711,910,449.40/x - Step 3: Cross multiply
1,268,863,766.68x = 1,751,037,036.84 × 711,910,449.40 - Step 4: Simplify right side
1,268,863,766.68x = 1,246,581,563,812,808,704 - Step 5: Solve for x
x = 1,246,581,563,812,808,704/1,268,863,766.68 - Step 6: Final answer
x = 982,439,247.26
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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.