Finding the Fourth Proportional to 99,691,839,612.70, 149,537,759,419.05 and 28,946,413,692.70
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Solution
The fourth proportional to 99,691,839,612.70, 149,537,759,419.05 and 28,946,413,692.70 is: 43,419,620,539.05
Step by Step Solution
- Step 1: Write the proportion equation
99,691,839,612.70 : 149,537,759,419.05 = 28,946,413,692.70 : x - Step 2: Convert to fraction form
99,691,839,612.70/149,537,759,419.05 = 28,946,413,692.70/x - Step 3: Cross multiply
99,691,839,612.70x = 149,537,759,419.05 × 28,946,413,692.70 - Step 4: Simplify right side
99,691,839,612.70x = 4,328,581,846,823,267,205,120 - Step 5: Solve for x
x = 4,328,581,846,823,267,205,120/99,691,839,612.70 - Step 6: Final answer
x = 43,419,620,539.05
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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.