Finding the Fourth Proportional to 709,678,849.05, 1,064,555,868.10 and 218,729,322.99
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Solution
The fourth proportional to 709,678,849.05, 1,064,555,868.10 and 218,729,322.99 is: 328,105,571.45
Step by Step Solution
- Step 1: Write the proportion equation
709,678,849.05 : 1,064,555,868.10 = 218,729,322.99 : x - Step 2: Convert to fraction form
709,678,849.05/1,064,555,868.10 = 218,729,322.99/x - Step 3: Cross multiply
709,678,849.05x = 1,064,555,868.10 × 218,729,322.99 - Step 4: Simplify right side
709,678,849.05x = 232,849,584,314,544,768 - Step 5: Solve for x
x = 232,849,584,314,544,768/709,678,849.05 - Step 6: Final answer
x = 328,105,571.45
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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.