Finding the Fourth Proportional to 19,975,138.56, 29,950,110.72 and 11,005,989.12
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Solution
The fourth proportional to 19,975,138.56, 29,950,110.72 and 11,005,989.12 is: 16,502,042.86
Step by Step Solution
- Step 1: Write the proportion equation
19,975,138.56 : 29,950,110.72 = 11,005,989.12 : x - Step 2: Convert to fraction form
19,975,138.56/29,950,110.72 = 11,005,989.12/x - Step 3: Cross multiply
19,975,138.56x = 29,950,110.72 × 11,005,989.12 - Step 4: Simplify right side
19,975,138.56x = 329,630,592,727,115.31 - Step 5: Solve for x
x = 329,630,592,727,115.31/19,975,138.56 - Step 6: Final answer
x = 16,502,042.86
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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.