Finding the Fourth Proportional to 2,207,703,009.12, 3,311,161,319.99 and 879,619,743.57
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Solution
The fourth proportional to 2,207,703,009.12, 3,311,161,319.99 and 879,619,743.57 is: 1,319,272,954.37
Step by Step Solution
- Step 1: Write the proportion equation
2,207,703,009.12 : 3,311,161,319.99 = 879,619,743.57 : x - Step 2: Convert to fraction form
2,207,703,009.12/3,311,161,319.99 = 879,619,743.57/x - Step 3: Cross multiply
2,207,703,009.12x = 3,311,161,319.99 × 879,619,743.57 - Step 4: Simplify right side
2,207,703,009.12x = 2,912,562,871,204,108,800 - Step 5: Solve for x
x = 2,912,562,871,204,108,800/2,207,703,009.12 - Step 6: Final answer
x = 1,319,272,954.37
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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.