Finding the Fourth Proportional to 38,739,468.12, 53,462,883.86 and 21,335,808.74
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Solution
The fourth proportional to 38,739,468.12, 53,462,883.86 and 21,335,808.74 is: 29,444,747.69
Step by Step Solution
- Step 1: Write the proportion equation
38,739,468.12 : 53,462,883.86 = 21,335,808.74 : x - Step 2: Convert to fraction form
38,739,468.12/53,462,883.86 = 21,335,808.74/x - Step 3: Cross multiply
38,739,468.12x = 53,462,883.86 × 21,335,808.74 - Step 4: Simplify right side
38,739,468.12x = 1,140,673,864,351,799.25 - Step 5: Solve for x
x = 1,140,673,864,351,799.25/38,739,468.12 - Step 6: Final answer
x = 29,444,747.69
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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.