Finding the Fourth Proportional to 68,205,588.56, 102,306,905.68 and 19,020,129.49
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Solution
The fourth proportional to 68,205,588.56, 102,306,905.68 and 19,020,129.49 is: 28,529,782.31
Step by Step Solution
- Step 1: Write the proportion equation
68,205,588.56 : 102,306,905.68 = 19,020,129.49 : x - Step 2: Convert to fraction form
68,205,588.56/102,306,905.68 = 19,020,129.49/x - Step 3: Cross multiply
68,205,588.56x = 102,306,905.68 × 19,020,129.49 - Step 4: Simplify right side
68,205,588.56x = 1,945,890,593,754,816.50 - Step 5: Solve for x
x = 1,945,890,593,754,816.50/68,205,588.56 - Step 6: Final answer
x = 28,529,782.31
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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.