Finding the Fourth Proportional to 8,736,777,625.80, 13,105,166,438.70 and 5,640,909,414.60
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Solution
The fourth proportional to 8,736,777,625.80, 13,105,166,438.70 and 5,640,909,414.60 is: 8,461,364,121.90
Step by Step Solution
- Step 1: Write the proportion equation
8,736,777,625.80 : 13,105,166,438.70 = 5,640,909,414.60 : x - Step 2: Convert to fraction form
8,736,777,625.80/13,105,166,438.70 = 5,640,909,414.60/x - Step 3: Cross multiply
8,736,777,625.80x = 13,105,166,438.70 × 5,640,909,414.60 - Step 4: Simplify right side
8,736,777,625.80x = 73,925,056,743,962,787,840 - Step 5: Solve for x
x = 73,925,056,743,962,787,840/8,736,777,625.80 - Step 6: Final answer
x = 8,461,364,121.90
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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.