Finding the Fourth Proportional to 1,347,519,452.40, 2,021,279,178.60 and 657,071,305.20
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Solution
The fourth proportional to 1,347,519,452.40, 2,021,279,178.60 and 657,071,305.20 is: 985,606,957.80
Step by Step Solution
- Step 1: Write the proportion equation
1,347,519,452.40 : 2,021,279,178.60 = 657,071,305.20 : x - Step 2: Convert to fraction form
1,347,519,452.40/2,021,279,178.60 = 657,071,305.20/x - Step 3: Cross multiply
1,347,519,452.40x = 2,021,279,178.60 × 657,071,305.20 - Step 4: Simplify right side
1,347,519,452.40x = 1,328,124,548,056,285,952 - Step 5: Solve for x
x = 1,328,124,548,056,285,952/1,347,519,452.40 - Step 6: Final answer
x = 985,606,957.80
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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.