Finding the Fourth Proportional to 1,112,524,117.20, 1,668,777,881.40 and 336,168,277.20
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Solution
The fourth proportional to 1,112,524,117.20, 1,668,777,881.40 and 336,168,277.20 is: 504,249,909.50
Step by Step Solution
- Step 1: Write the proportion equation
1,112,524,117.20 : 1,668,777,881.40 = 336,168,277.20 : x - Step 2: Convert to fraction form
1,112,524,117.20/1,668,777,881.40 = 336,168,277.20/x - Step 3: Cross multiply
1,112,524,117.20x = 1,668,777,881.40 × 336,168,277.20 - Step 4: Simplify right side
1,112,524,117.20x = 560,990,185,419,703,936 - Step 5: Solve for x
x = 560,990,185,419,703,936/1,112,524,117.20 - Step 6: Final answer
x = 504,249,909.50
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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.