Finding the Fourth Proportional to 612,147,634.80, 918,221,452.20 and 336,648,620.40
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Solution
The fourth proportional to 612,147,634.80, 918,221,452.20 and 336,648,620.40 is: 504,972,930.60
Step by Step Solution
- Step 1: Write the proportion equation
612,147,634.80 : 918,221,452.20 = 336,648,620.40 : x - Step 2: Convert to fraction form
612,147,634.80/918,221,452.20 = 336,648,620.40/x - Step 3: Cross multiply
612,147,634.80x = 918,221,452.20 × 336,648,620.40 - Step 4: Simplify right side
612,147,634.80x = 309,117,985,104,814,528 - Step 5: Solve for x
x = 309,117,985,104,814,528/612,147,634.80 - Step 6: Final answer
x = 504,972,930.60
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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.