Finding the Fourth Proportional to 3,892,144,609.26, 5,371,246,291.95 and 2,221,360,240.14
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Solution
The fourth proportional to 3,892,144,609.26, 5,371,246,291.95 and 2,221,360,240.14 is: 3,065,526,631.40
Step by Step Solution
- Step 1: Write the proportion equation
3,892,144,609.26 : 5,371,246,291.95 = 2,221,360,240.14 : x - Step 2: Convert to fraction form
3,892,144,609.26/5,371,246,291.95 = 2,221,360,240.14/x - Step 3: Cross multiply
3,892,144,609.26x = 5,371,246,291.95 × 2,221,360,240.14 - Step 4: Simplify right side
3,892,144,609.26x = 11,931,472,952,937,136,128 - Step 5: Solve for x
x = 11,931,472,952,937,136,128/3,892,144,609.26 - Step 6: Final answer
x = 3,065,526,631.40
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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.