Finding the Fourth Proportional to 20,484,656.58, 28,268,491.66 and 11,192,026.66
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Solution
The fourth proportional to 20,484,656.58, 28,268,491.66 and 11,192,026.66 is: 15,444,814.08
Step by Step Solution
- Step 1: Write the proportion equation
20,484,656.58 : 28,268,491.66 = 11,192,026.66 : x - Step 2: Convert to fraction form
20,484,656.58/28,268,491.66 = 11,192,026.66/x - Step 3: Cross multiply
20,484,656.58x = 28,268,491.66 × 11,192,026.66 - Step 4: Simplify right side
20,484,656.58x = 316,381,712,384,424.19 - Step 5: Solve for x
x = 316,381,712,384,424.19/20,484,656.58 - Step 6: Final answer
x = 15,444,814.08
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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.