Finding the Fourth Proportional to 35,909,655.68, 49,555,639.56 and 20,440,734.96
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Solution
The fourth proportional to 35,909,655.68, 49,555,639.56 and 20,440,734.96 is: 28,208,393.39
Step by Step Solution
- Step 1: Write the proportion equation
35,909,655.68 : 49,555,639.56 = 20,440,734.96 : x - Step 2: Convert to fraction form
35,909,655.68/49,555,639.56 = 20,440,734.96/x - Step 3: Cross multiply
35,909,655.68x = 49,555,639.56 × 20,440,734.96 - Step 4: Simplify right side
35,909,655.68x = 1,012,953,694,019,251.12 - Step 5: Solve for x
x = 1,012,953,694,019,251.12/35,909,655.68 - Step 6: Final answer
x = 28,208,393.39
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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.