Finding the Fourth Proportional to 6,460,459.20, 8,915,031.99 and 3,559,687.74
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Solution
The fourth proportional to 6,460,459.20, 8,915,031.99 and 3,559,687.74 is: 4,912,147.74
Step by Step Solution
- Step 1: Write the proportion equation
6,460,459.20 : 8,915,031.99 = 3,559,687.74 : x - Step 2: Convert to fraction form
6,460,459.20/8,915,031.99 = 3,559,687.74/x - Step 3: Cross multiply
6,460,459.20x = 8,915,031.99 × 3,559,687.74 - Step 4: Simplify right side
6,460,459.20x = 31,734,730,076,510.80 - Step 5: Solve for x
x = 31,734,730,076,510.80/6,460,459.20 - Step 6: Final answer
x = 4,912,147.74
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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.