Finding the Fourth Proportional to 20,736,909.72, 31,102,633.56 and 6,163,518.12
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Solution
The fourth proportional to 20,736,909.72, 31,102,633.56 and 6,163,518.12 is: 9,244,465.45
Step by Step Solution
- Step 1: Write the proportion equation
20,736,909.72 : 31,102,633.56 = 6,163,518.12 : x - Step 2: Convert to fraction form
20,736,909.72/31,102,633.56 = 6,163,518.12/x - Step 3: Cross multiply
20,736,909.72x = 31,102,633.56 × 6,163,518.12 - Step 4: Simplify right side
20,736,909.72x = 191,701,645,526,780.09 - Step 5: Solve for x
x = 191,701,645,526,780.09/20,736,909.72 - Step 6: Final answer
x = 9,244,465.45
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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.