Finding the Fourth Proportional to 39,874,228.96, 55,026,484.94 and 21,539,514.46
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Solution
The fourth proportional to 39,874,228.96, 55,026,484.94 and 21,539,514.46 is: 29,724,556.41
Step by Step Solution
- Step 1: Write the proportion equation
39,874,228.96 : 55,026,484.94 = 21,539,514.46 : x - Step 2: Convert to fraction form
39,874,228.96/55,026,484.94 = 21,539,514.46/x - Step 3: Cross multiply
39,874,228.96x = 55,026,484.94 × 21,539,514.46 - Step 4: Simplify right side
39,874,228.96x = 1,185,243,768,048,102.25 - Step 5: Solve for x
x = 1,185,243,768,048,102.25/39,874,228.96 - Step 6: Final answer
x = 29,724,556.41
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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.