Finding the Fourth Proportional to 7,688,877.12, 11,529,765.66 and 2,829,963.12
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Solution
The fourth proportional to 7,688,877.12, 11,529,765.66 and 2,829,963.12 is: 4,243,638.06
Step by Step Solution
- Step 1: Write the proportion equation
7,688,877.12 : 11,529,765.66 = 2,829,963.12 : x - Step 2: Convert to fraction form
7,688,877.12/11,529,765.66 = 2,829,963.12/x - Step 3: Cross multiply
7,688,877.12x = 11,529,765.66 × 2,829,963.12 - Step 4: Simplify right side
7,688,877.12x = 32,628,811,600,042.46 - Step 5: Solve for x
x = 32,628,811,600,042.46/7,688,877.12 - Step 6: Final answer
x = 4,243,638.06
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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.