Finding the Fourth Proportional to 112,181,542.21, 168,331,558.94 and 79,602,628.19
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Solution
The fourth proportional to 112,181,542.21, 168,331,558.94 and 79,602,628.19 is: 119,445,982.25
Step by Step Solution
- Step 1: Write the proportion equation
112,181,542.21 : 168,331,558.94 = 79,602,628.19 : x - Step 2: Convert to fraction form
112,181,542.21/168,331,558.94 = 79,602,628.19/x - Step 3: Cross multiply
112,181,542.21x = 168,331,558.94 × 79,602,628.19 - Step 4: Simplify right side
112,181,542.21x = 13,399,634,498,545,878 - Step 5: Solve for x
x = 13,399,634,498,545,878/112,181,542.21 - Step 6: Final answer
x = 119,445,982.25
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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.