Finding the Fourth Proportional to 20,960,217.84, 31,443,279.21 and 7,311,373.65
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Solution
The fourth proportional to 20,960,217.84, 31,443,279.21 and 7,311,373.65 is: 10,968,090.35
Step by Step Solution
- Step 1: Write the proportion equation
20,960,217.84 : 31,443,279.21 = 7,311,373.65 : x - Step 2: Convert to fraction form
20,960,217.84/31,443,279.21 = 7,311,373.65/x - Step 3: Cross multiply
20,960,217.84x = 31,443,279.21 × 7,311,373.65 - Step 4: Simplify right side
20,960,217.84x = 229,893,563,085,586.84 - Step 5: Solve for x
x = 229,893,563,085,586.84/20,960,217.84 - Step 6: Final answer
x = 10,968,090.35
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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.