Finding the Fourth Proportional to 38,524,405.41, 53,162,268.71 and 21,120,368.76
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Solution
The fourth proportional to 38,524,405.41, 53,162,268.71 and 21,120,368.76 is: 29,145,335.46
Step by Step Solution
- Step 1: Write the proportion equation
38,524,405.41 : 53,162,268.71 = 21,120,368.76 : x - Step 2: Convert to fraction form
38,524,405.41/53,162,268.71 = 21,120,368.76/x - Step 3: Cross multiply
38,524,405.41x = 53,162,268.71 × 21,120,368.76 - Step 4: Simplify right side
38,524,405.41x = 1,122,806,719,167,807.75 - Step 5: Solve for x
x = 1,122,806,719,167,807.75/38,524,405.41 - Step 6: Final answer
x = 29,145,335.46
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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.