Finding the Fourth Proportional to 2,192,330,218.80, 3,288,495,328.20 and 556,554,820.80
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Solution
The fourth proportional to 2,192,330,218.80, 3,288,495,328.20 and 556,554,820.80 is: 834,832,231.20
Step by Step Solution
- Step 1: Write the proportion equation
2,192,330,218.80 : 3,288,495,328.20 = 556,554,820.80 : x - Step 2: Convert to fraction form
2,192,330,218.80/3,288,495,328.20 = 556,554,820.80/x - Step 3: Cross multiply
2,192,330,218.80x = 3,288,495,328.20 × 556,554,820.80 - Step 4: Simplify right side
2,192,330,218.80x = 1,830,227,928,087,987,968 - Step 5: Solve for x
x = 1,830,227,928,087,987,968/2,192,330,218.80 - Step 6: Final answer
x = 834,832,231.20
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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.