Finding the Fourth Proportional to 291,101,619.05, 401,717,187.53 and 158,942,205.95
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Solution
The fourth proportional to 291,101,619.05, 401,717,187.53 and 158,942,205.95 is: 219,338,580.68
Step by Step Solution
- Step 1: Write the proportion equation
291,101,619.05 : 401,717,187.53 = 158,942,205.95 : x - Step 2: Convert to fraction form
291,101,619.05/401,717,187.53 = 158,942,205.95/x - Step 3: Cross multiply
291,101,619.05x = 401,717,187.53 × 158,942,205.95 - Step 4: Simplify right side
291,101,619.05x = 63,849,815,954,048,024 - Step 5: Solve for x
x = 63,849,815,954,048,024/291,101,619.05 - Step 6: Final answer
x = 219,338,580.68
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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.