Finding the Fourth Proportional to 669,352,458.80, 1,004,028,688.20 and 474,207,323.60
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Solution
The fourth proportional to 669,352,458.80, 1,004,028,688.20 and 474,207,323.60 is: 711,310,985.40
Step by Step Solution
- Step 1: Write the proportion equation
669,352,458.80 : 1,004,028,688.20 = 474,207,323.60 : x - Step 2: Convert to fraction form
669,352,458.80/1,004,028,688.20 = 474,207,323.60/x - Step 3: Cross multiply
669,352,458.80x = 1,004,028,688.20 × 474,207,323.60 - Step 4: Simplify right side
669,352,458.80x = 476,117,757,048,940,928 - Step 5: Solve for x
x = 476,117,757,048,940,928/669,352,458.80 - Step 6: Final answer
x = 711,310,985.40
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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.