Finding the Fourth Proportional to 20,353,488.45, 30,505,220.14 and 9,408,873.63
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Solution
The fourth proportional to 20,353,488.45, 30,505,220.14 and 9,408,873.63 is: 14,101,747.82
Step by Step Solution
- Step 1: Write the proportion equation
20,353,488.45 : 30,505,220.14 = 9,408,873.63 : x - Step 2: Convert to fraction form
20,353,488.45/30,505,220.14 = 9,408,873.63/x - Step 3: Cross multiply
20,353,488.45x = 30,505,220.14 × 9,408,873.63 - Step 4: Simplify right side
20,353,488.45x = 287,019,761,352,590.94 - Step 5: Solve for x
x = 287,019,761,352,590.94/20,353,488.45 - Step 6: Final answer
x = 14,101,747.82
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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.