Finding the Fourth Proportional to 242,461,138.80, 363,691,708.20 and 69,943,580.40
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Solution
The fourth proportional to 242,461,138.80, 363,691,708.20 and 69,943,580.40 is: 104,915,370.60
Step by Step Solution
- Step 1: Write the proportion equation
242,461,138.80 : 363,691,708.20 = 69,943,580.40 : x - Step 2: Convert to fraction form
242,461,138.80/363,691,708.20 = 69,943,580.40/x - Step 3: Cross multiply
242,461,138.80x = 363,691,708.20 × 69,943,580.40 - Step 4: Simplify right side
242,461,138.80x = 25,437,900,233,300,040 - Step 5: Solve for x
x = 25,437,900,233,300,040/242,461,138.80 - Step 6: Final answer
x = 104,915,370.60
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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.