Finding the Fourth Proportional to 52,488,135.20, 78,732,202.80 and 49,128,903.20
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Solution
The fourth proportional to 52,488,135.20, 78,732,202.80 and 49,128,903.20 is: 73,693,354.80
Step by Step Solution
- Step 1: Write the proportion equation
52,488,135.20 : 78,732,202.80 = 49,128,903.20 : x - Step 2: Convert to fraction form
52,488,135.20/78,732,202.80 = 49,128,903.20/x - Step 3: Cross multiply
52,488,135.20x = 78,732,202.80 × 49,128,903.20 - Step 4: Simplify right side
52,488,135.20x = 3,868,026,770,083,969 - Step 5: Solve for x
x = 3,868,026,770,083,969/52,488,135.20 - Step 6: Final answer
x = 73,693,354.80
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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.