Finding the Fourth Proportional to 1,772,928,000.20, 2,659,392,000.30 and 852,330,470.60
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Solution
The fourth proportional to 1,772,928,000.20, 2,659,392,000.30 and 852,330,470.60 is: 1,278,495,705.90
Step by Step Solution
- Step 1: Write the proportion equation
1,772,928,000.20 : 2,659,392,000.30 = 852,330,470.60 : x - Step 2: Convert to fraction form
1,772,928,000.20/2,659,392,000.30 = 852,330,470.60/x - Step 3: Cross multiply
1,772,928,000.20x = 2,659,392,000.30 × 852,330,470.60 - Step 4: Simplify right side
1,772,928,000.20x = 2,266,680,835,125,574,656 - Step 5: Solve for x
x = 2,266,680,835,125,574,656/1,772,928,000.20 - Step 6: Final answer
x = 1,278,495,705.90
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.