Finding the Fourth Proportional to 19,931,356.20, 29,897,034.30 and 19,553,442.60
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Solution
The fourth proportional to 19,931,356.20, 29,897,034.30 and 19,553,442.60 is: 29,330,163.90
Step by Step Solution
- Step 1: Write the proportion equation
19,931,356.20 : 29,897,034.30 = 19,553,442.60 : x - Step 2: Convert to fraction form
19,931,356.20/29,897,034.30 = 19,553,442.60/x - Step 3: Cross multiply
19,931,356.20x = 29,897,034.30 × 19,553,442.60 - Step 4: Simplify right side
19,931,356.20x = 584,589,944,095,281.25 - Step 5: Solve for x
x = 584,589,944,095,281.25/19,931,356.20 - Step 6: Final answer
x = 29,330,163.90
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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.