Finding the Fourth Proportional to 98,415,101.20, 147,622,651.80 and 57,432,470.80
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Solution
The fourth proportional to 98,415,101.20, 147,622,651.80 and 57,432,470.80 is: 86,148,706.20
Step by Step Solution
- Step 1: Write the proportion equation
98,415,101.20 : 147,622,651.80 = 57,432,470.80 : x - Step 2: Convert to fraction form
98,415,101.20/147,622,651.80 = 57,432,470.80/x - Step 3: Cross multiply
98,415,101.20x = 147,622,651.80 × 57,432,470.80 - Step 4: Simplify right side
98,415,101.20x = 8,478,333,638,922,068 - Step 5: Solve for x
x = 8,478,333,638,922,068/98,415,101.20 - Step 6: Final answer
x = 86,148,706.20
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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.