Finding the Fourth Proportional to 135,571,245.13, 187,108,768.95 and 82,678,638.52
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Solution
The fourth proportional to 135,571,245.13, 187,108,768.95 and 82,678,638.52 is: 114,108,993.08
Step by Step Solution
- Step 1: Write the proportion equation
135,571,245.13 : 187,108,768.95 = 82,678,638.52 : x - Step 2: Convert to fraction form
135,571,245.13/187,108,768.95 = 82,678,638.52/x - Step 3: Cross multiply
135,571,245.13x = 187,108,768.95 × 82,678,638.52 - Step 4: Simplify right side
135,571,245.13x = 15,469,898,271,939,248 - Step 5: Solve for x
x = 15,469,898,271,939,248/135,571,245.13 - Step 6: Final answer
x = 114,108,993.08
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.