Finding the Fourth Proportional to 84,489,408,838.15, 126,734,113,257.23 and 70,852,207,625.35
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Solution
The fourth proportional to 84,489,408,838.15, 126,734,113,257.23 and 70,852,207,625.35 is: 106,278,311,438.03
Step by Step Solution
- Step 1: Write the proportion equation
84,489,408,838.15 : 126,734,113,257.23 = 70,852,207,625.35 : x - Step 2: Convert to fraction form
84,489,408,838.15/126,734,113,257.23 = 70,852,207,625.35/x - Step 3: Cross multiply
84,489,408,838.15x = 126,734,113,257.23 × 70,852,207,625.35 - Step 4: Simplify right side
84,489,408,838.15x = 8,979,391,705,715,882,065,920 - Step 5: Solve for x
x = 8,979,391,705,715,882,065,920/84,489,408,838.15 - Step 6: Final answer
x = 106,278,311,438.03
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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.