Finding the Fourth Proportional to 621,422,999.15, 932,257,292.94 and 227,953,478.99
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Solution
The fourth proportional to 621,422,999.15, 932,257,292.94 and 227,953,478.99 is: 341,975,262.47
Step by Step Solution
- Step 1: Write the proportion equation
621,422,999.15 : 932,257,292.94 = 227,953,478.99 : x - Step 2: Convert to fraction form
621,422,999.15/932,257,292.94 = 227,953,478.99/x - Step 3: Cross multiply
621,422,999.15x = 932,257,292.94 × 227,953,478.99 - Step 4: Simplify right side
621,422,999.15x = 212,511,293,239,472,576 - Step 5: Solve for x
x = 212,511,293,239,472,576/621,422,999.15 - Step 6: Final answer
x = 341,975,262.47
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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.