Finding the Fourth Proportional to 19,995,992.70, 29,995,108.26 and 5,617,938.25
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Solution
The fourth proportional to 19,995,992.70, 29,995,108.26 and 5,617,938.25 is: 8,427,221.82
Step by Step Solution
- Step 1: Write the proportion equation
19,995,992.70 : 29,995,108.26 = 5,617,938.25 : x - Step 2: Convert to fraction form
19,995,992.70/29,995,108.26 = 5,617,938.25/x - Step 3: Cross multiply
19,995,992.70x = 29,995,108.26 × 5,617,938.25 - Step 4: Simplify right side
19,995,992.70x = 168,510,666,006,744.97 - Step 5: Solve for x
x = 168,510,666,006,744.97/19,995,992.70 - Step 6: Final answer
x = 8,427,221.82
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1.5x scale
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.