Finding the Fourth Proportional to 190,722,984.80, 286,127,122.92 and 69,554,436.80
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Solution
The fourth proportional to 190,722,984.80, 286,127,122.92 and 69,554,436.80 is: 104,347,207.59
Step by Step Solution
- Step 1: Write the proportion equation
190,722,984.80 : 286,127,122.92 = 69,554,436.80 : x - Step 2: Convert to fraction form
190,722,984.80/286,127,122.92 = 69,554,436.80/x - Step 3: Cross multiply
190,722,984.80x = 286,127,122.92 × 69,554,436.80 - Step 4: Simplify right side
190,722,984.80x = 19,901,410,887,904,972 - Step 5: Solve for x
x = 19,901,410,887,904,972/190,722,984.80 - Step 6: Final answer
x = 104,347,207.59
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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.