Finding the Fourth Proportional to 8,454,573,630.80, 12,681,860,446.20 and 6,120,579,237.20
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Solution
The fourth proportional to 8,454,573,630.80, 12,681,860,446.20 and 6,120,579,237.20 is: 9,180,868,855.80
Step by Step Solution
- Step 1: Write the proportion equation
8,454,573,630.80 : 12,681,860,446.20 = 6,120,579,237.20 : x - Step 2: Convert to fraction form
8,454,573,630.80/12,681,860,446.20 = 6,120,579,237.20/x - Step 3: Cross multiply
8,454,573,630.80x = 12,681,860,446.20 × 6,120,579,237.20 - Step 4: Simplify right side
8,454,573,630.80x = 77,620,331,736,079,646,720 - Step 5: Solve for x
x = 77,620,331,736,079,646,720/8,454,573,630.80 - Step 6: Final answer
x = 9,180,868,855.80
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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.