Finding the Fourth Proportional to 98,639,166.45, 136,122,314.49 and 54,589,202.94
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Solution
The fourth proportional to 98,639,166.45, 136,122,314.49 and 54,589,202.94 is: 75,333,246.59
Step by Step Solution
- Step 1: Write the proportion equation
98,639,166.45 : 136,122,314.49 = 54,589,202.94 : x - Step 2: Convert to fraction form
98,639,166.45/136,122,314.49 = 54,589,202.94/x - Step 3: Cross multiply
98,639,166.45x = 136,122,314.49 × 54,589,202.94 - Step 4: Simplify right side
98,639,166.45x = 7,430,808,650,084,167 - Step 5: Solve for x
x = 7,430,808,650,084,167/98,639,166.45 - Step 6: Final answer
x = 75,333,246.59
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.