Finding the Fourth Proportional to 105,192,402.20, 157,788,603.30 and 101,161,323.80
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Solution
The fourth proportional to 105,192,402.20, 157,788,603.30 and 101,161,323.80 is: 151,741,985.70
Step by Step Solution
- Step 1: Write the proportion equation
105,192,402.20 : 157,788,603.30 = 101,161,323.80 : x - Step 2: Convert to fraction form
105,192,402.20/157,788,603.30 = 101,161,323.80/x - Step 3: Cross multiply
105,192,402.20x = 157,788,603.30 × 101,161,323.80 - Step 4: Simplify right side
105,192,402.20x = 15,962,103,990,381,050 - Step 5: Solve for x
x = 15,962,103,990,381,050/105,192,402.20 - Step 6: Final answer
x = 151,741,985.70
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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.