Finding the Fourth Proportional to 38,594,585.50, 53,261,289.72 and 21,190,778.49
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Solution
The fourth proportional to 38,594,585.50, 53,261,289.72 and 21,190,778.49 is: 29,243,692.55
Step by Step Solution
- Step 1: Write the proportion equation
38,594,585.50 : 53,261,289.72 = 21,190,778.49 : x - Step 2: Convert to fraction form
38,594,585.50/53,261,289.72 = 21,190,778.49/x - Step 3: Cross multiply
38,594,585.50x = 53,261,289.72 × 21,190,778.49 - Step 4: Simplify right side
38,594,585.50x = 1,128,648,192,548,234 - Step 5: Solve for x
x = 1,128,648,192,548,234/38,594,585.50 - Step 6: Final answer
x = 29,243,692.55
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.