Finding the Fourth Proportional to 28,181,120.23, 38,866,888.93 and 19,836,115.08
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Solution
The fourth proportional to 28,181,120.23, 38,866,888.93 and 19,836,115.08 is: 27,357,609.47
Step by Step Solution
- Step 1: Write the proportion equation
28,181,120.23 : 38,866,888.93 = 19,836,115.08 : x - Step 2: Convert to fraction form
28,181,120.23/38,866,888.93 = 19,836,115.08/x - Step 3: Cross multiply
28,181,120.23x = 38,866,888.93 × 19,836,115.08 - Step 4: Simplify right side
28,181,120.23x = 770,968,081,617,058 - Step 5: Solve for x
x = 770,968,081,617,058/28,181,120.23 - Step 6: Final answer
x = 27,357,609.47
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.