Finding the Fourth Proportional to 19,764,620.20, 29,646,930.30 and 6,985,541.80
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Solution
The fourth proportional to 19,764,620.20, 29,646,930.30 and 6,985,541.80 is: 10,478,312.70
Step by Step Solution
- Step 1: Write the proportion equation
19,764,620.20 : 29,646,930.30 = 6,985,541.80 : x - Step 2: Convert to fraction form
19,764,620.20/29,646,930.30 = 6,985,541.80/x - Step 3: Cross multiply
19,764,620.20x = 29,646,930.30 × 6,985,541.80 - Step 4: Simplify right side
19,764,620.20x = 207,099,870,852,336.53 - Step 5: Solve for x
x = 207,099,870,852,336.53/19,764,620.20 - Step 6: Final answer
x = 10,478,312.70
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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.