Finding the Fourth Proportional to 38,701,749.49, 53,396,390.39 and 21,953,728.76
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Solution
The fourth proportional to 38,701,749.49, 53,396,390.39 and 21,953,728.76 is: 30,289,325.08
Step by Step Solution
- Step 1: Write the proportion equation
38,701,749.49 : 53,396,390.39 = 21,953,728.76 : x - Step 2: Convert to fraction form
38,701,749.49/53,396,390.39 = 21,953,728.76/x - Step 3: Cross multiply
38,701,749.49x = 53,396,390.39 × 21,953,728.76 - Step 4: Simplify right side
38,701,749.49x = 1,172,249,871,573,505.75 - Step 5: Solve for x
x = 1,172,249,871,573,505.75/38,701,749.49 - Step 6: Final answer
x = 30,289,325.08
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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.