Finding the Fourth Proportional to 195,610,021.80, 293,415,032.70 and 138,214,393.80
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Solution
The fourth proportional to 195,610,021.80, 293,415,032.70 and 138,214,393.80 is: 207,321,590.70
Step by Step Solution
- Step 1: Write the proportion equation
195,610,021.80 : 293,415,032.70 = 138,214,393.80 : x - Step 2: Convert to fraction form
195,610,021.80/293,415,032.70 = 138,214,393.80/x - Step 3: Cross multiply
195,610,021.80x = 293,415,032.70 × 138,214,393.80 - Step 4: Simplify right side
195,610,021.80x = 40,554,180,876,437,680 - Step 5: Solve for x
x = 40,554,180,876,437,680/195,610,021.80 - Step 6: Final answer
x = 207,321,590.70
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1.5x scale
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.