Finding the Fourth Proportional to 392,676,283.96, 541,897,009.03 and 216,470,599.13
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Solution
The fourth proportional to 392,676,283.96, 541,897,009.03 and 216,470,599.13 is: 298,731,486.99
Step by Step Solution
- Step 1: Write the proportion equation
392,676,283.96 : 541,897,009.03 = 216,470,599.13 : x - Step 2: Convert to fraction form
392,676,283.96/541,897,009.03 = 216,470,599.13/x - Step 3: Cross multiply
392,676,283.96x = 541,897,009.03 × 216,470,599.13 - Step 4: Simplify right side
392,676,283.96x = 117,304,770,213,104,448 - Step 5: Solve for x
x = 117,304,770,213,104,448/392,676,283.96 - Step 6: Final answer
x = 298,731,486.99
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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.