Finding the Fourth Proportional to 805,202,207.40, 1,207,803,311.10 and 417,781,718.40
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Solution
The fourth proportional to 805,202,207.40, 1,207,803,311.10 and 417,781,718.40 is: 626,672,577.60
Step by Step Solution
- Step 1: Write the proportion equation
805,202,207.40 : 1,207,803,311.10 = 417,781,718.40 : x - Step 2: Convert to fraction form
805,202,207.40/1,207,803,311.10 = 417,781,718.40/x - Step 3: Cross multiply
805,202,207.40x = 1,207,803,311.10 × 417,781,718.40 - Step 4: Simplify right side
805,202,207.40x = 504,598,142,800,567,744 - Step 5: Solve for x
x = 504,598,142,800,567,744/805,202,207.40 - Step 6: Final answer
x = 626,672,577.60
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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.