Finding the Fourth Proportional to 15,299,070,629, 21,112,160,069.94 and 8,524,539,180.68
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Solution
The fourth proportional to 15,299,070,629, 21,112,160,069.94 and 8,524,539,180.68 is: 11,763,553,490.88
Step by Step Solution
- Step 1: Write the proportion equation
15,299,070,629 : 21,112,160,069.94 = 8,524,539,180.68 : x - Step 2: Convert to fraction form
15,299,070,629/21,112,160,069.94 = 8,524,539,180.68/x - Step 3: Cross multiply
15,299,070,629x = 21,112,160,069.94 × 8,524,539,180.68 - Step 4: Simplify right side
15,299,070,629x = 179,971,435,704,991,318,016 - Step 5: Solve for x
x = 179,971,435,704,991,318,016/15,299,070,629 - Step 6: Final answer
x = 11,763,553,490.88
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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.