Finding the Fourth Proportional to 438,586,675.20, 605,524,806.36 and 282,225,513.69
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Solution
The fourth proportional to 438,586,675.20, 605,524,806.36 and 282,225,513.69 is: 389,648,293.46
Step by Step Solution
- Step 1: Write the proportion equation
438,586,675.20 : 605,524,806.36 = 282,225,513.69 : x - Step 2: Convert to fraction form
438,586,675.20/605,524,806.36 = 282,225,513.69/x - Step 3: Cross multiply
438,586,675.20x = 605,524,806.36 × 282,225,513.69 - Step 4: Simplify right side
438,586,675.20x = 170,894,549,526,988,768 - Step 5: Solve for x
x = 170,894,549,526,988,768/438,586,675.20 - Step 6: Final answer
x = 389,648,293.46
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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.