Finding the Fourth Proportional to 107,834,520.20, 161,751,780.30 and 97,084,977.80
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Solution
The fourth proportional to 107,834,520.20, 161,751,780.30 and 97,084,977.80 is: 145,627,466.70
Step by Step Solution
- Step 1: Write the proportion equation
107,834,520.20 : 161,751,780.30 = 97,084,977.80 : x - Step 2: Convert to fraction form
107,834,520.20/161,751,780.30 = 97,084,977.80/x - Step 3: Cross multiply
107,834,520.20x = 161,751,780.30 × 97,084,977.80 - Step 4: Simplify right side
107,834,520.20x = 15,703,667,999,535,978 - Step 5: Solve for x
x = 15,703,667,999,535,978/107,834,520.20 - Step 6: Final answer
x = 145,627,466.70
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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.