Finding the Fourth Proportional to 27,658,276.52, 38,167,421.06 and 15,268,103.82
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Solution
The fourth proportional to 27,658,276.52, 38,167,421.06 and 15,268,103.82 is: 21,069,430.95
Step by Step Solution
- Step 1: Write the proportion equation
27,658,276.52 : 38,167,421.06 = 15,268,103.82 : x - Step 2: Convert to fraction form
27,658,276.52/38,167,421.06 = 15,268,103.82/x - Step 3: Cross multiply
27,658,276.52x = 38,167,421.06 × 15,268,103.82 - Step 4: Simplify right side
27,658,276.52x = 582,744,147,323,904.75 - Step 5: Solve for x
x = 582,744,147,323,904.75/27,658,276.52 - Step 6: Final answer
x = 21,069,430.95
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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.