Finding the Fourth Proportional to 1,137,368,138.40, 1,706,052,207.60 and 447,297,904.80
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Solution
The fourth proportional to 1,137,368,138.40, 1,706,052,207.60 and 447,297,904.80 is: 670,946,857.20
Step by Step Solution
- Step 1: Write the proportion equation
1,137,368,138.40 : 1,706,052,207.60 = 447,297,904.80 : x - Step 2: Convert to fraction form
1,137,368,138.40/1,706,052,207.60 = 447,297,904.80/x - Step 3: Cross multiply
1,137,368,138.40x = 1,706,052,207.60 × 447,297,904.80 - Step 4: Simplify right side
1,137,368,138.40x = 763,113,577,938,894,592 - Step 5: Solve for x
x = 763,113,577,938,894,592/1,137,368,138.40 - Step 6: Final answer
x = 670,946,857.20
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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.