Finding the Fourth Proportional to 98,419,467.80, 147,629,201.70 and 25,636,107.80
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Solution
The fourth proportional to 98,419,467.80, 147,629,201.70 and 25,636,107.80 is: 38,454,161.70
Step by Step Solution
- Step 1: Write the proportion equation
98,419,467.80 : 147,629,201.70 = 25,636,107.80 : x - Step 2: Convert to fraction form
98,419,467.80/147,629,201.70 = 25,636,107.80/x - Step 3: Cross multiply
98,419,467.80x = 147,629,201.70 × 25,636,107.80 - Step 4: Simplify right side
98,419,467.80x = 3,784,638,129,209,143 - Step 5: Solve for x
x = 3,784,638,129,209,143/98,419,467.80 - Step 6: Final answer
x = 38,454,161.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.