Finding the Fourth Proportional to 3,121,324,271.84, 4,680,819,894.36 and 1,255,340,148.32
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Solution
The fourth proportional to 3,121,324,271.84, 4,680,819,894.36 and 1,255,340,148.32 is: 1,882,541,071.90
Step by Step Solution
- Step 1: Write the proportion equation
3,121,324,271.84 : 4,680,819,894.36 = 1,255,340,148.32 : x - Step 2: Convert to fraction form
3,121,324,271.84/4,680,819,894.36 = 1,255,340,148.32/x - Step 3: Cross multiply
3,121,324,271.84x = 4,680,819,894.36 × 1,255,340,148.32 - Step 4: Simplify right side
3,121,324,271.84x = 5,876,021,140,445,088,768 - Step 5: Solve for x
x = 5,876,021,140,445,088,768/3,121,324,271.84 - Step 6: Final answer
x = 1,882,541,071.90
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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.