Finding the Fourth Proportional to 1,245,366,674.88, 1,718,613,783.61 and 680,852,772.84
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Solution
The fourth proportional to 1,245,366,674.88, 1,718,613,783.61 and 680,852,772.84 is: 939,581,075.69
Step by Step Solution
- Step 1: Write the proportion equation
1,245,366,674.88 : 1,718,613,783.61 = 680,852,772.84 : x - Step 2: Convert to fraction form
1,245,366,674.88/1,718,613,783.61 = 680,852,772.84/x - Step 3: Cross multiply
1,245,366,674.88x = 1,718,613,783.61 × 680,852,772.84 - Step 4: Simplify right side
1,245,366,674.88x = 1,170,122,960,012,804,352 - Step 5: Solve for x
x = 1,170,122,960,012,804,352/1,245,366,674.88 - Step 6: Final answer
x = 939,581,075.69
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1.5x scale
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.