Finding the Fourth Proportional to 383,208,163.74, 528,827,184.77 and 206,996,163.65
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Solution
The fourth proportional to 383,208,163.74, 528,827,184.77 and 206,996,163.65 is: 285,654,661.98
Step by Step Solution
- Step 1: Write the proportion equation
383,208,163.74 : 528,827,184.77 = 206,996,163.65 : x - Step 2: Convert to fraction form
383,208,163.74/528,827,184.77 = 206,996,163.65/x - Step 3: Cross multiply
383,208,163.74x = 528,827,184.77 × 206,996,163.65 - Step 4: Simplify right side
383,208,163.74x = 109,465,198,481,219,712 - Step 5: Solve for x
x = 109,465,198,481,219,712/383,208,163.74 - Step 6: Final answer
x = 285,654,661.98
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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.