Finding the Fourth Proportional to 2,521,990,206.36, 3,480,561,613.26 and 1,408,371,439.32
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Solution
The fourth proportional to 2,521,990,206.36, 3,480,561,613.26 and 1,408,371,439.32 is: 1,943,672,721.86
Step by Step Solution
- Step 1: Write the proportion equation
2,521,990,206.36 : 3,480,561,613.26 = 1,408,371,439.32 : x - Step 2: Convert to fraction form
2,521,990,206.36/3,480,561,613.26 = 1,408,371,439.32/x - Step 3: Cross multiply
2,521,990,206.36x = 3,480,561,613.26 × 1,408,371,439.32 - Step 4: Simplify right side
2,521,990,206.36x = 4,901,923,568,908,926,976 - Step 5: Solve for x
x = 4,901,923,568,908,926,976/2,521,990,206.36 - Step 6: Final answer
x = 1,943,672,721.86
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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.