Finding the Fourth Proportional to 7,146,162,205.18, 9,861,975,927.90 and 3,974,575,461.28
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Solution
The fourth proportional to 7,146,162,205.18, 9,861,975,927.90 and 3,974,575,461.28 is: 5,485,065,465.54
Step by Step Solution
- Step 1: Write the proportion equation
7,146,162,205.18 : 9,861,975,927.90 = 3,974,575,461.28 : x - Step 2: Convert to fraction form
7,146,162,205.18/9,861,975,927.90 = 3,974,575,461.28/x - Step 3: Cross multiply
7,146,162,205.18x = 9,861,975,927.90 × 3,974,575,461.28 - Step 4: Simplify right side
7,146,162,205.18x = 39,197,167,522,765,398,016 - Step 5: Solve for x
x = 39,197,167,522,765,398,016/7,146,162,205.18 - Step 6: Final answer
x = 5,485,065,465.54
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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.