Finding the Fourth Proportional to 957,418,463.91, 1,321,180,539.57 and 555,501,076.66
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Solution
The fourth proportional to 957,418,463.91, 1,321,180,539.57 and 555,501,076.66 is: 766,558,448.43
Step by Step Solution
- Step 1: Write the proportion equation
957,418,463.91 : 1,321,180,539.57 = 555,501,076.66 : x - Step 2: Convert to fraction form
957,418,463.91/1,321,180,539.57 = 555,501,076.66/x - Step 3: Cross multiply
957,418,463.91x = 1,321,180,539.57 × 555,501,076.66 - Step 4: Simplify right side
957,418,463.91x = 733,917,212,193,374,592 - Step 5: Solve for x
x = 733,917,212,193,374,592/957,418,463.91 - Step 6: Final answer
x = 766,558,448.43
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Double scale
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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.