Finding the Fourth Proportional to 2,086,206,933.60, 3,129,310,400.40 and 631,995,400.80
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Solution
The fourth proportional to 2,086,206,933.60, 3,129,310,400.40 and 631,995,400.80 is: 947,993,101.20
Step by Step Solution
- Step 1: Write the proportion equation
2,086,206,933.60 : 3,129,310,400.40 = 631,995,400.80 : x - Step 2: Convert to fraction form
2,086,206,933.60/3,129,310,400.40 = 631,995,400.80/x - Step 3: Cross multiply
2,086,206,933.60x = 3,129,310,400.40 × 631,995,400.80 - Step 4: Simplify right side
2,086,206,933.60x = 1,977,709,780,728,406,272 - Step 5: Solve for x
x = 1,977,709,780,728,406,272/2,086,206,933.60 - Step 6: Final answer
x = 947,993,101.20
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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.