Finding the Fourth Proportional to 3,892,144,609.76, 5,371,246,292.64 and 2,221,360,240.64
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Solution
The fourth proportional to 3,892,144,609.76, 5,371,246,292.64 and 2,221,360,240.64 is: 3,065,526,632.09
Step by Step Solution
- Step 1: Write the proportion equation
3,892,144,609.76 : 5,371,246,292.64 = 2,221,360,240.64 : x - Step 2: Convert to fraction form
3,892,144,609.76/5,371,246,292.64 = 2,221,360,240.64/x - Step 3: Cross multiply
3,892,144,609.76x = 5,371,246,292.64 × 2,221,360,240.64 - Step 4: Simplify right side
3,892,144,609.76x = 11,931,472,957,155,497,984 - Step 5: Solve for x
x = 11,931,472,957,155,497,984/3,892,144,609.76 - Step 6: Final answer
x = 3,065,526,632.09
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.