Finding the Fourth Proportional to 20,248,365.08, 27,955,784.94 and 18,069,160.52
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Solution
The fourth proportional to 20,248,365.08, 27,955,784.94 and 18,069,160.52 is: 24,947,079.11
Step by Step Solution
- Step 1: Write the proportion equation
20,248,365.08 : 27,955,784.94 = 18,069,160.52 : x - Step 2: Convert to fraction form
20,248,365.08/27,955,784.94 = 18,069,160.52/x - Step 3: Cross multiply
20,248,365.08x = 27,955,784.94 × 18,069,160.52 - Step 4: Simplify right side
20,248,365.08x = 505,137,565,543,458.56 - Step 5: Solve for x
x = 505,137,565,543,458.56/20,248,365.08 - Step 6: Final answer
x = 24,947,079.11
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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.