Finding the Fourth Proportional to 18,897,793.38, 28,351,178.55 and 6,118,291.62
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Solution
The fourth proportional to 18,897,793.38, 28,351,178.55 and 6,118,291.62 is: 9,178,890.61
Step by Step Solution
- Step 1: Write the proportion equation
18,897,793.38 : 28,351,178.55 = 6,118,291.62 : x - Step 2: Convert to fraction form
18,897,793.38/28,351,178.55 = 6,118,291.62/x - Step 3: Cross multiply
18,897,793.38x = 28,351,178.55 × 6,118,291.62 - Step 4: Simplify right side
18,897,793.38x = 173,460,778,139,588.75 - Step 5: Solve for x
x = 173,460,778,139,588.75/18,897,793.38 - Step 6: Final answer
x = 9,178,890.61
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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.