Finding the Fourth Proportional to 38,440,277.19, 53,047,548.25 and 21,698,540.65
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Solution
The fourth proportional to 38,440,277.19, 53,047,548.25 and 21,698,540.65 is: 29,943,966.75
Step by Step Solution
- Step 1: Write the proportion equation
38,440,277.19 : 53,047,548.25 = 21,698,540.65 : x - Step 2: Convert to fraction form
38,440,277.19/53,047,548.25 = 21,698,540.65/x - Step 3: Cross multiply
38,440,277.19x = 53,047,548.25 × 21,698,540.65 - Step 4: Simplify right side
38,440,277.19x = 1,151,054,382,109,587.50 - Step 5: Solve for x
x = 1,151,054,382,109,587.50/38,440,277.19 - Step 6: Final answer
x = 29,943,966.75
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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.