Finding the Fourth Proportional to 358,859,685.06, 538,289,526.99 and 86,230,452.06
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Solution
The fourth proportional to 358,859,685.06, 538,289,526.99 and 86,230,452.06 is: 129,345,677.95
Step by Step Solution
- Step 1: Write the proportion equation
358,859,685.06 : 538,289,526.99 = 86,230,452.06 : x - Step 2: Convert to fraction form
358,859,685.06/538,289,526.99 = 86,230,452.06/x - Step 3: Cross multiply
358,859,685.06x = 538,289,526.99 × 86,230,452.06 - Step 4: Simplify right side
358,859,685.06x = 46,416,949,252,856,992 - Step 5: Solve for x
x = 46,416,949,252,856,992/358,859,685.06 - Step 6: Final answer
x = 129,345,677.95
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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.