Finding the Fourth Proportional to 38,668,669.14, 53,347,660.38 and 22,139,960.13
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Solution
The fourth proportional to 38,668,669.14, 53,347,660.38 and 22,139,960.13 is: 30,544,497.65
Step by Step Solution
- Step 1: Write the proportion equation
38,668,669.14 : 53,347,660.38 = 22,139,960.13 : x - Step 2: Convert to fraction form
38,668,669.14/53,347,660.38 = 22,139,960.13/x - Step 3: Cross multiply
38,668,669.14x = 53,347,660.38 × 22,139,960.13 - Step 4: Simplify right side
38,668,669.14x = 1,181,115,073,841,980.75 - Step 5: Solve for x
x = 1,181,115,073,841,980.75/38,668,669.14 - Step 6: Final answer
x = 30,544,497.65
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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.