Finding the Fourth Proportional to 384,038,786.41, 529,974,844.18 and 207,826,735.05
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Solution
The fourth proportional to 384,038,786.41, 529,974,844.18 and 207,826,735.05 is: 286,801,608.12
Step by Step Solution
- Step 1: Write the proportion equation
384,038,786.41 : 529,974,844.18 = 207,826,735.05 : x - Step 2: Convert to fraction form
384,038,786.41/529,974,844.18 = 207,826,735.05/x - Step 3: Cross multiply
384,038,786.41x = 529,974,844.18 × 207,826,735.05 - Step 4: Simplify right side
384,038,786.41x = 110,142,941,524,042,336 - Step 5: Solve for x
x = 110,142,941,524,042,336/384,038,786.41 - Step 6: Final answer
x = 286,801,608.12
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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.