Finding the Fourth Proportional to 1,137,368,174.40, 1,706,052,261.60 and 447,297,940.80
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Solution
The fourth proportional to 1,137,368,174.40, 1,706,052,261.60 and 447,297,940.80 is: 670,946,911.20
Step by Step Solution
- Step 1: Write the proportion equation
1,137,368,174.40 : 1,706,052,261.60 = 447,297,940.80 : x - Step 2: Convert to fraction form
1,137,368,174.40/1,706,052,261.60 = 447,297,940.80/x - Step 3: Cross multiply
1,137,368,174.40x = 1,706,052,261.60 × 447,297,940.80 - Step 4: Simplify right side
1,137,368,174.40x = 763,113,663,510,862,848 - Step 5: Solve for x
x = 763,113,663,510,862,848/1,137,368,174.40 - Step 6: Final answer
x = 670,946,911.20
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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.