Finding the Fourth Proportional to 669,352,487.80, 1,004,028,731.70 and 474,207,352.60
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Solution
The fourth proportional to 669,352,487.80, 1,004,028,731.70 and 474,207,352.60 is: 711,311,028.90
Step by Step Solution
- Step 1: Write the proportion equation
669,352,487.80 : 1,004,028,731.70 = 474,207,352.60 : x - Step 2: Convert to fraction form
669,352,487.80/1,004,028,731.70 = 474,207,352.60/x - Step 3: Cross multiply
669,352,487.80x = 1,004,028,731.70 × 474,207,352.60 - Step 4: Simplify right side
669,352,487.80x = 476,117,806,793,792,768 - Step 5: Solve for x
x = 476,117,806,793,792,768/669,352,487.80 - Step 6: Final answer
x = 711,311,028.90
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Double scale
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Similar ratio
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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.