Finding the Fourth Proportional to 91,175,692.80, 136,763,539.20 and 60,668,889.60
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Solution
The fourth proportional to 91,175,692.80, 136,763,539.20 and 60,668,889.60 is: 91,003,334.40
Step by Step Solution
- Step 1: Write the proportion equation
91,175,692.80 : 136,763,539.20 = 60,668,889.60 : x - Step 2: Convert to fraction form
91,175,692.80/136,763,539.20 = 60,668,889.60/x - Step 3: Cross multiply
91,175,692.80x = 136,763,539.20 × 60,668,889.60 - Step 4: Simplify right side
91,175,692.80x = 8,297,292,061,030,072 - Step 5: Solve for x
x = 8,297,292,061,030,072/91,175,692.80 - Step 6: Final answer
x = 91,003,334.40
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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.