Finding the Fourth Proportional to 49,830,109.20, 74,745,163.80 and 27,155,293.20
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Solution
The fourth proportional to 49,830,109.20, 74,745,163.80 and 27,155,293.20 is: 40,732,939.80
Step by Step Solution
- Step 1: Write the proportion equation
49,830,109.20 : 74,745,163.80 = 27,155,293.20 : x - Step 2: Convert to fraction form
49,830,109.20/74,745,163.80 = 27,155,293.20/x - Step 3: Cross multiply
49,830,109.20x = 74,745,163.80 × 27,155,293.20 - Step 4: Simplify right side
49,830,109.20x = 2,029,726,838,271,026 - Step 5: Solve for x
x = 2,029,726,838,271,026/49,830,109.20 - Step 6: Final answer
x = 40,732,939.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.