Finding the Fourth Proportional to 759,330,406.39, 1,138,382,665.58 and 698,039,278.95
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Solution
The fourth proportional to 759,330,406.39, 1,138,382,665.58 and 698,039,278.95 is: 1,046,495,449.64
Step by Step Solution
- Step 1: Write the proportion equation
759,330,406.39 : 1,138,382,665.58 = 698,039,278.95 : x - Step 2: Convert to fraction form
759,330,406.39/1,138,382,665.58 = 698,039,278.95/x - Step 3: Cross multiply
759,330,406.39x = 1,138,382,665.58 × 698,039,278.95 - Step 4: Simplify right side
759,330,406.39x = 794,635,815,053,446,016 - Step 5: Solve for x
x = 794,635,815,053,446,016/759,330,406.39 - Step 6: Final answer
x = 1,046,495,449.64
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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.