Finding the Fourth Proportional to 5,121,807,924, 7,065,930,612.87 and 3,428,808,028.05
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Solution
The fourth proportional to 5,121,807,924, 7,065,930,612.87 and 3,428,808,028.05 is: 4,730,306,167.38
Step by Step Solution
- Step 1: Write the proportion equation
5,121,807,924 : 7,065,930,612.87 = 3,428,808,028.05 : x - Step 2: Convert to fraction form
5,121,807,924/7,065,930,612.87 = 3,428,808,028.05/x - Step 3: Cross multiply
5,121,807,924x = 7,065,930,612.87 × 3,428,808,028.05 - Step 4: Simplify right side
5,121,807,924x = 24,227,719,611,052,912,640 - Step 5: Solve for x
x = 24,227,719,611,052,912,640/5,121,807,924 - Step 6: Final answer
x = 4,730,306,167.38
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.