Finding the Fourth Proportional to 135,519,305.43, 187,015,984.34 and 76,781,855.19
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Solution
The fourth proportional to 135,519,305.43, 187,015,984.34 and 76,781,855.19 is: 105,958,587.83
Step by Step Solution
- Step 1: Write the proportion equation
135,519,305.43 : 187,015,984.34 = 76,781,855.19 : x - Step 2: Convert to fraction form
135,519,305.43/187,015,984.34 = 76,781,855.19/x - Step 3: Cross multiply
135,519,305.43x = 187,015,984.34 × 76,781,855.19 - Step 4: Simplify right side
135,519,305.43x = 14,359,434,227,425,278 - Step 5: Solve for x
x = 14,359,434,227,425,278/135,519,305.43 - Step 6: Final answer
x = 105,958,587.83
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.