Finding the Fourth Proportional to 22,619,811.84, 31,214,997.12 and 12,306,299.52
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Solution
The fourth proportional to 22,619,811.84, 31,214,997.12 and 12,306,299.52 is: 16,982,506.61
Step by Step Solution
- Step 1: Write the proportion equation
22,619,811.84 : 31,214,997.12 = 12,306,299.52 : x - Step 2: Convert to fraction form
22,619,811.84/31,214,997.12 = 12,306,299.52/x - Step 3: Cross multiply
22,619,811.84x = 31,214,997.12 × 12,306,299.52 - Step 4: Simplify right side
22,619,811.84x = 384,141,104,074,657.38 - Step 5: Solve for x
x = 384,141,104,074,657.38/22,619,811.84 - Step 6: Final answer
x = 16,982,506.61
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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.