Finding the Fourth Proportional to 159,901,830.68, 220,660,465.07 and 89,337,984.08
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Solution
The fourth proportional to 159,901,830.68, 220,660,465.07 and 89,337,984.08 is: 123,284,148.98
Step by Step Solution
- Step 1: Write the proportion equation
159,901,830.68 : 220,660,465.07 = 89,337,984.08 : x - Step 2: Convert to fraction form
159,901,830.68/220,660,465.07 = 89,337,984.08/x - Step 3: Cross multiply
159,901,830.68x = 220,660,465.07 × 89,337,984.08 - Step 4: Simplify right side
159,901,830.68x = 19,713,361,114,629,100 - Step 5: Solve for x
x = 19,713,361,114,629,100/159,901,830.68 - Step 6: Final answer
x = 123,284,148.98
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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.