Finding the Fourth Proportional to 13,193,125.80, 19,789,688.70 and 13,193,125.80
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Solution
The fourth proportional to 13,193,125.80, 19,789,688.70 and 13,193,125.80 is: 19,789,688.70
Step by Step Solution
- Step 1: Write the proportion equation
13,193,125.80 : 19,789,688.70 = 13,193,125.80 : x - Step 2: Convert to fraction form
13,193,125.80/19,789,688.70 = 13,193,125.80/x - Step 3: Cross multiply
13,193,125.80x = 19,789,688.70 × 13,193,125.80 - Step 4: Simplify right side
13,193,125.80x = 261,087,852,561,938.47 - Step 5: Solve for x
x = 261,087,852,561,938.47/13,193,125.80 - Step 6: Final answer
x = 19,789,688.70
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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.