Finding the Fourth Proportional to 142,163,986.05, 199,603,536.75 and 142,163,986.05
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Solution
The fourth proportional to 142,163,986.05, 199,603,536.75 and 142,163,986.05 is: 199,603,536.75
Step by Step Solution
- Step 1: Write the proportion equation
142,163,986.05 : 199,603,536.75 = 142,163,986.05 : x - Step 2: Convert to fraction form
142,163,986.05/199,603,536.75 = 142,163,986.05/x - Step 3: Cross multiply
142,163,986.05x = 199,603,536.75 × 142,163,986.05 - Step 4: Simplify right side
142,163,986.05x = 28,376,434,414,057,664 - Step 5: Solve for x
x = 28,376,434,414,057,664/142,163,986.05 - Step 6: Final answer
x = 199,603,536.75
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Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.