Finding the Fourth Proportional to 38,968,630.24, 53,776,813.98 and 21,566,175.52
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Solution
The fourth proportional to 38,968,630.24, 53,776,813.98 and 21,566,175.52 is: 29,761,379.91
Step by Step Solution
- Step 1: Write the proportion equation
38,968,630.24 : 53,776,813.98 = 21,566,175.52 : x - Step 2: Convert to fraction form
38,968,630.24/53,776,813.98 = 21,566,175.52/x - Step 3: Cross multiply
38,968,630.24x = 53,776,813.98 × 21,566,175.52 - Step 4: Simplify right side
38,968,630.24x = 1,159,760,209,199,069.75 - Step 5: Solve for x
x = 1,159,760,209,199,069.75/38,968,630.24 - Step 6: Final answer
x = 29,761,379.91
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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.