Finding the Fourth Proportional to 129,032,469.20, 193,548,703.80 and 97,181,973.20
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Solution
The fourth proportional to 129,032,469.20, 193,548,703.80 and 97,181,973.20 is: 145,772,959.80
Step by Step Solution
- Step 1: Write the proportion equation
129,032,469.20 : 193,548,703.80 = 97,181,973.20 : x - Step 2: Convert to fraction form
129,032,469.20/193,548,703.80 = 97,181,973.20/x - Step 3: Cross multiply
129,032,469.20x = 193,548,703.80 × 97,181,973.20 - Step 4: Simplify right side
129,032,469.20x = 18,809,444,945,586,340 - Step 5: Solve for x
x = 18,809,444,945,586,340/129,032,469.20 - Step 6: Final answer
x = 145,772,959.80
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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.