Finding the Fourth Proportional to 19,985,948.70, 29,960,552.97 and 7,203,325.02
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Solution
The fourth proportional to 19,985,948.70, 29,960,552.97 and 7,203,325.02 is: 10,798,366.60
Step by Step Solution
- Step 1: Write the proportion equation
19,985,948.70 : 29,960,552.97 = 7,203,325.02 : x - Step 2: Convert to fraction form
19,985,948.70/29,960,552.97 = 7,203,325.02/x - Step 3: Cross multiply
19,985,948.70x = 29,960,552.97 × 7,203,325.02 - Step 4: Simplify right side
19,985,948.70x = 215,815,600,821,836.28 - Step 5: Solve for x
x = 215,815,600,821,836.28/19,985,948.70 - Step 6: Final answer
x = 10,798,366.60
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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.