Finding the Fourth Proportional to 15,069,596.48, 20,803,748.64 and 11,624,102.72
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Solution
The fourth proportional to 15,069,596.48, 20,803,748.64 and 11,624,102.72 is: 16,047,205.48
Step by Step Solution
- Step 1: Write the proportion equation
15,069,596.48 : 20,803,748.64 = 11,624,102.72 : x - Step 2: Convert to fraction form
15,069,596.48/20,803,748.64 = 11,624,102.72/x - Step 3: Cross multiply
15,069,596.48x = 20,803,748.64 × 11,624,102.72 - Step 4: Simplify right side
15,069,596.48x = 241,824,911,152,420.31 - Step 5: Solve for x
x = 241,824,911,152,420.31/15,069,596.48 - Step 6: Final answer
x = 16,047,205.48
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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.