Finding the Fourth Proportional to 8,076,438.80, 12,121,267.80 and 8,013,453.20
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Solution
The fourth proportional to 8,076,438.80, 12,121,267.80 and 8,013,453.20 is: 12,026,737.85
Step by Step Solution
- Step 1: Write the proportion equation
8,076,438.80 : 12,121,267.80 = 8,013,453.20 : x - Step 2: Convert to fraction form
8,076,438.80/12,121,267.80 = 8,013,453.20/x - Step 3: Cross multiply
8,076,438.80x = 12,121,267.80 × 8,013,453.20 - Step 4: Simplify right side
8,076,438.80x = 97,133,212,239,966.97 - Step 5: Solve for x
x = 97,133,212,239,966.97/8,076,438.80 - Step 6: Final answer
x = 12,026,737.85
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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.