Finding the Fourth Proportional to 839,809,114.40, 1,259,713,671.60 and 472,477,095.20
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Solution
The fourth proportional to 839,809,114.40, 1,259,713,671.60 and 472,477,095.20 is: 708,715,642.80
Step by Step Solution
- Step 1: Write the proportion equation
839,809,114.40 : 1,259,713,671.60 = 472,477,095.20 : x - Step 2: Convert to fraction form
839,809,114.40/1,259,713,671.60 = 472,477,095.20/x - Step 3: Cross multiply
839,809,114.40x = 1,259,713,671.60 × 472,477,095.20 - Step 4: Simplify right side
839,809,114.40x = 595,185,856,341,294,720 - Step 5: Solve for x
x = 595,185,856,341,294,720/839,809,114.40 - Step 6: Final answer
x = 708,715,642.80
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Double scale
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Similar ratio
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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.