Finding the Fourth Proportional to 467,278,089.09, 645,042,315.96 and 291,153,102.72
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Solution
The fourth proportional to 467,278,089.09, 645,042,315.96 and 291,153,102.72 is: 401,914,996.79
Step by Step Solution
- Step 1: Write the proportion equation
467,278,089.09 : 645,042,315.96 = 291,153,102.72 : x - Step 2: Convert to fraction form
467,278,089.09/645,042,315.96 = 291,153,102.72/x - Step 3: Cross multiply
467,278,089.09x = 645,042,315.96 × 291,153,102.72 - Step 4: Simplify right side
467,278,089.09x = 187,806,071,677,448,608 - Step 5: Solve for x
x = 187,806,071,677,448,608/467,278,089.09 - Step 6: Final answer
x = 401,914,996.79
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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.