Finding the Fourth Proportional to 7,668,994,440.80, 11,503,491,661.20 and 3,949,757,746.40
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Solution
The fourth proportional to 7,668,994,440.80, 11,503,491,661.20 and 3,949,757,746.40 is: 5,924,636,619.60
Step by Step Solution
- Step 1: Write the proportion equation
7,668,994,440.80 : 11,503,491,661.20 = 3,949,757,746.40 : x - Step 2: Convert to fraction form
7,668,994,440.80/11,503,491,661.20 = 3,949,757,746.40/x - Step 3: Cross multiply
7,668,994,440.80x = 11,503,491,661.20 × 3,949,757,746.40 - Step 4: Simplify right side
7,668,994,440.80x = 45,436,005,299,472,506,880 - Step 5: Solve for x
x = 45,436,005,299,472,506,880/7,668,994,440.80 - Step 6: Final answer
x = 5,924,636,619.60
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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.