Finding the Fourth Proportional to 638,776,897.62, 958,502,928.56 and 453,229,966.73
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Solution
The fourth proportional to 638,776,897.62, 958,502,928.56 and 453,229,966.73 is: 680,084,473.99
Step by Step Solution
- Step 1: Write the proportion equation
638,776,897.62 : 958,502,928.56 = 453,229,966.73 : x - Step 2: Convert to fraction form
638,776,897.62/958,502,928.56 = 453,229,966.73/x - Step 3: Cross multiply
638,776,897.62x = 958,502,928.56 × 453,229,966.73 - Step 4: Simplify right side
638,776,897.62x = 434,422,250,414,797,696 - Step 5: Solve for x
x = 434,422,250,414,797,696/638,776,897.62 - Step 6: Final answer
x = 680,084,473.99
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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.