Finding the Fourth Proportional to 1,245,366,675.88, 1,718,613,784.99 and 680,852,773.84
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Solution
The fourth proportional to 1,245,366,675.88, 1,718,613,784.99 and 680,852,773.84 is: 939,581,077.07
Step by Step Solution
- Step 1: Write the proportion equation
1,245,366,675.88 : 1,718,613,784.99 = 680,852,773.84 : x - Step 2: Convert to fraction form
1,245,366,675.88/1,718,613,784.99 = 680,852,773.84/x - Step 3: Cross multiply
1,245,366,675.88x = 1,718,613,784.99 × 680,852,773.84 - Step 4: Simplify right side
1,245,366,675.88x = 1,170,122,962,670,103,040 - Step 5: Solve for x
x = 1,170,122,962,670,103,040/1,245,366,675.88 - Step 6: Final answer
x = 939,581,077.07
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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.