Finding the Fourth Proportional to 142,019,976.70, 213,029,965.05 and 103,756,224.70
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Solution
The fourth proportional to 142,019,976.70, 213,029,965.05 and 103,756,224.70 is: 155,634,337.05
Step by Step Solution
- Step 1: Write the proportion equation
142,019,976.70 : 213,029,965.05 = 103,756,224.70 : x - Step 2: Convert to fraction form
142,019,976.70/213,029,965.05 = 103,756,224.70/x - Step 3: Cross multiply
142,019,976.70x = 213,029,965.05 × 103,756,224.70 - Step 4: Simplify right side
142,019,976.70x = 22,103,184,921,560,948 - Step 5: Solve for x
x = 22,103,184,921,560,948/142,019,976.70 - Step 6: Final answer
x = 155,634,337.05
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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.