Finding the Fourth Proportional to 165,939,797.70, 248,909,696.55 and 79,846,355.70
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Solution
The fourth proportional to 165,939,797.70, 248,909,696.55 and 79,846,355.70 is: 119,769,533.55
Step by Step Solution
- Step 1: Write the proportion equation
165,939,797.70 : 248,909,696.55 = 79,846,355.70 : x - Step 2: Convert to fraction form
165,939,797.70/248,909,696.55 = 79,846,355.70/x - Step 3: Cross multiply
165,939,797.70x = 248,909,696.55 × 79,846,355.70 - Step 4: Simplify right side
165,939,797.70x = 19,874,532,167,910,364 - Step 5: Solve for x
x = 19,874,532,167,910,364/165,939,797.70 - Step 6: Final answer
x = 119,769,533.55
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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.