Finding the Fourth Proportional to 38,774,265.92, 53,508,812.64 and 21,370,655.68
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Solution
The fourth proportional to 38,774,265.92, 53,508,812.64 and 21,370,655.68 is: 29,491,684.33
Step by Step Solution
- Step 1: Write the proportion equation
38,774,265.92 : 53,508,812.64 = 21,370,655.68 : x - Step 2: Convert to fraction form
38,774,265.92/53,508,812.64 = 21,370,655.68/x - Step 3: Cross multiply
38,774,265.92x = 53,508,812.64 × 21,370,655.68 - Step 4: Simplify right side
38,774,265.92x = 1,143,518,410,775,071.75 - Step 5: Solve for x
x = 1,143,518,410,775,071.75/38,774,265.92 - Step 6: Final answer
x = 29,491,684.33
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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.