Finding the Fourth Proportional to 312,696,799.92, 431,573,313.78 and 173,512,402.02
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Solution
The fourth proportional to 312,696,799.92, 431,573,313.78 and 173,512,402.02 is: 239,475,819.20
Step by Step Solution
- Step 1: Write the proportion equation
312,696,799.92 : 431,573,313.78 = 173,512,402.02 : x - Step 2: Convert to fraction form
312,696,799.92/431,573,313.78 = 173,512,402.02/x - Step 3: Cross multiply
312,696,799.92x = 431,573,313.78 × 173,512,402.02 - Step 4: Simplify right side
312,696,799.92x = 74,883,322,321,698,960 - Step 5: Solve for x
x = 74,883,322,321,698,960/312,696,799.92 - Step 6: Final answer
x = 239,475,819.20
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.