Finding the Fourth Proportional to 864,825,900.05, 1,193,453,799.36 and 468,339,816.47
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Solution
The fourth proportional to 864,825,900.05, 1,193,453,799.36 and 468,339,816.47 is: 646,305,728.50
Step by Step Solution
- Step 1: Write the proportion equation
864,825,900.05 : 1,193,453,799.36 = 468,339,816.47 : x - Step 2: Convert to fraction form
864,825,900.05/1,193,453,799.36 = 468,339,816.47/x - Step 3: Cross multiply
864,825,900.05x = 1,193,453,799.36 × 468,339,816.47 - Step 4: Simplify right side
864,825,900.05x = 558,941,933,355,344,960 - Step 5: Solve for x
x = 558,941,933,355,344,960/864,825,900.05 - Step 6: Final answer
x = 646,305,728.50
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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.