Finding the Fourth Proportional to 118,109,393.70, 177,164,090.55 and 106,205,115.30
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Solution
The fourth proportional to 118,109,393.70, 177,164,090.55 and 106,205,115.30 is: 159,307,672.95
Step by Step Solution
- Step 1: Write the proportion equation
118,109,393.70 : 177,164,090.55 = 106,205,115.30 : x - Step 2: Convert to fraction form
118,109,393.70/177,164,090.55 = 106,205,115.30/x - Step 3: Cross multiply
118,109,393.70x = 177,164,090.55 × 106,205,115.30 - Step 4: Simplify right side
118,109,393.70x = 18,815,732,663,882,392 - Step 5: Solve for x
x = 18,815,732,663,882,392/118,109,393.70 - Step 6: Final answer
x = 159,307,672.95
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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.