Finding the Fourth Proportional to 292,486,138.80, 438,778,532.52 and 98,351,405.80
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Solution
The fourth proportional to 292,486,138.80, 438,778,532.52 and 98,351,405.80 is: 147,543,694.50
Step by Step Solution
- Step 1: Write the proportion equation
292,486,138.80 : 438,778,532.52 = 98,351,405.80 : x - Step 2: Convert to fraction form
292,486,138.80/438,778,532.52 = 98,351,405.80/x - Step 3: Cross multiply
292,486,138.80x = 438,778,532.52 × 98,351,405.80 - Step 4: Simplify right side
292,486,138.80x = 43,154,485,508,203,016 - Step 5: Solve for x
x = 43,154,485,508,203,016/292,486,138.80 - Step 6: Final answer
x = 147,543,694.50
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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.