Finding the Fourth Proportional to 392,577,540.84, 541,755,369.29 and 216,365,115.65
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Solution
The fourth proportional to 392,577,540.84, 541,755,369.29 and 216,365,115.65 is: 298,582,957.34
Step by Step Solution
- Step 1: Write the proportion equation
392,577,540.84 : 541,755,369.29 = 216,365,115.65 : x - Step 2: Convert to fraction form
392,577,540.84/541,755,369.29 = 216,365,115.65/x - Step 3: Cross multiply
392,577,540.84x = 541,755,369.29 × 216,365,115.65 - Step 4: Simplify right side
392,577,540.84x = 117,216,963,132,233,808 - Step 5: Solve for x
x = 117,216,963,132,233,808/392,577,540.84 - Step 6: Final answer
x = 298,582,957.34
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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.