Finding the Fourth Proportional to 667,946,194.08, 921,734,518.76 and 370,585,271.56
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Solution
The fourth proportional to 667,946,194.08, 921,734,518.76 and 370,585,271.56 is: 511,390,348.46
Step by Step Solution
- Step 1: Write the proportion equation
667,946,194.08 : 921,734,518.76 = 370,585,271.56 : x - Step 2: Convert to fraction form
667,946,194.08/921,734,518.76 = 370,585,271.56/x - Step 3: Cross multiply
667,946,194.08x = 921,734,518.76 × 370,585,271.56 - Step 4: Simplify right side
667,946,194.08x = 341,581,236,940,900,544 - Step 5: Solve for x
x = 341,581,236,940,900,544/667,946,194.08 - Step 6: Final answer
x = 511,390,348.46
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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.