Finding the Fourth Proportional to 18,169,017.26, 27,259,430.80 and 12,128,304.56
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Solution
The fourth proportional to 18,169,017.26, 27,259,430.80 and 12,128,304.56 is: 18,196,398.53
Step by Step Solution
- Step 1: Write the proportion equation
18,169,017.26 : 27,259,430.80 = 12,128,304.56 : x - Step 2: Convert to fraction form
18,169,017.26/27,259,430.80 = 12,128,304.56/x - Step 3: Cross multiply
18,169,017.26x = 27,259,430.80 × 12,128,304.56 - Step 4: Simplify right side
18,169,017.26x = 330,610,678,874,644.50 - Step 5: Solve for x
x = 330,610,678,874,644.50/18,169,017.26 - Step 6: Final answer
x = 18,196,398.53
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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.