Finding the Fourth Proportional to 69,115,912.66, 103,679,822.49 and 17,998,024.42
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Solution
The fourth proportional to 69,115,912.66, 103,679,822.49 and 17,998,024.42 is: 26,998,586.94
Step by Step Solution
- Step 1: Write the proportion equation
69,115,912.66 : 103,679,822.49 = 17,998,024.42 : x - Step 2: Convert to fraction form
69,115,912.66/103,679,822.49 = 17,998,024.42/x - Step 3: Cross multiply
69,115,912.66x = 103,679,822.49 × 17,998,024.42 - Step 4: Simplify right side
69,115,912.66x = 1,866,031,977,036,285.25 - Step 5: Solve for x
x = 1,866,031,977,036,285.25/69,115,912.66 - Step 6: Final answer
x = 26,998,586.94
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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.