Finding the Fourth Proportional to 392,693,211.74, 541,918,274.74 and 216,477,339.14
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Solution
The fourth proportional to 392,693,211.74, 541,918,274.74 and 216,477,339.14 is: 298,739,633.48
Step by Step Solution
- Step 1: Write the proportion equation
392,693,211.74 : 541,918,274.74 = 216,477,339.14 : x - Step 2: Convert to fraction form
392,693,211.74/541,918,274.74 = 216,477,339.14/x - Step 3: Cross multiply
392,693,211.74x = 541,918,274.74 × 216,477,339.14 - Step 4: Simplify right side
392,693,211.74x = 117,313,026,144,345,088 - Step 5: Solve for x
x = 117,313,026,144,345,088/392,693,211.74 - Step 6: Final answer
x = 298,739,633.48
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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.