Finding the Fourth Proportional to 1,042,065,512.56, 1,438,070,974.62 and 572,162,723.08
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Solution
The fourth proportional to 1,042,065,512.56, 1,438,070,974.62 and 572,162,723.08 is: 789,595,850.65
Step by Step Solution
- Step 1: Write the proportion equation
1,042,065,512.56 : 1,438,070,974.62 = 572,162,723.08 : x - Step 2: Convert to fraction form
1,042,065,512.56/1,438,070,974.62 = 572,162,723.08/x - Step 3: Cross multiply
1,042,065,512.56x = 1,438,070,974.62 × 572,162,723.08 - Step 4: Simplify right side
1,042,065,512.56x = 822,810,604,820,888,704 - Step 5: Solve for x
x = 822,810,604,820,888,704/1,042,065,512.56 - Step 6: Final answer
x = 789,595,850.65
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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.