Finding the Fourth Proportional to 135,769,271.53, 187,381,337.75 and 76,237,250.71
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Solution
The fourth proportional to 135,769,271.53, 187,381,337.75 and 76,237,250.71 is: 105,218,492.10
Step by Step Solution
- Step 1: Write the proportion equation
135,769,271.53 : 187,381,337.75 = 76,237,250.71 : x - Step 2: Convert to fraction form
135,769,271.53/187,381,337.75 = 76,237,250.71/x - Step 3: Cross multiply
135,769,271.53x = 187,381,337.75 × 76,237,250.71 - Step 4: Simplify right side
135,769,271.53x = 14,285,438,024,040,750 - Step 5: Solve for x
x = 14,285,438,024,040,750/135,769,271.53 - Step 6: Final answer
x = 105,218,492.10
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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.