Finding the Fourth Proportional to 711,570,115.24, 1,065,965,121.12 and 490,202,352.50
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Solution
The fourth proportional to 711,570,115.24, 1,065,965,121.12 and 490,202,352.50 is: 734,345,918.78
Step by Step Solution
- Step 1: Write the proportion equation
711,570,115.24 : 1,065,965,121.12 = 490,202,352.50 : x - Step 2: Convert to fraction form
711,570,115.24/1,065,965,121.12 = 490,202,352.50/x - Step 3: Cross multiply
711,570,115.24x = 1,065,965,121.12 × 490,202,352.50 - Step 4: Simplify right side
711,570,115.24x = 522,538,610,050,641,600 - Step 5: Solve for x
x = 522,538,610,050,641,600/711,570,115.24 - Step 6: Final answer
x = 734,345,918.78
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1.5x scale
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.