Finding the Fourth Proportional to 123,366,455,619.02, 170,183,053,172.68 and 80,571,988,404.08
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Solution
The fourth proportional to 123,366,455,619.02, 170,183,053,172.68 and 80,571,988,404.08 is: 111,148,422,948.50
Step by Step Solution
- Step 1: Write the proportion equation
123,366,455,619.02 : 170,183,053,172.68 = 80,571,988,404.08 : x - Step 2: Convert to fraction form
123,366,455,619.02/170,183,053,172.68 = 80,571,988,404.08/x - Step 3: Cross multiply
123,366,455,619.02x = 170,183,053,172.68 × 80,571,988,404.08 - Step 4: Simplify right side
123,366,455,619.02x = 13,711,986,986,800,442,769,408 - Step 5: Solve for x
x = 13,711,986,986,800,442,769,408/123,366,455,619.02 - Step 6: Final answer
x = 111,148,422,948.50
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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.