Finding the Fourth Proportional to 98,492,539.21, 135,917,333.30 and 53,836,507.41
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Solution
The fourth proportional to 98,492,539.21, 135,917,333.30 and 53,836,507.41 is: 74,293,084.33
Step by Step Solution
- Step 1: Write the proportion equation
98,492,539.21 : 135,917,333.30 = 53,836,507.41 : x - Step 2: Convert to fraction form
98,492,539.21/135,917,333.30 = 53,836,507.41/x - Step 3: Cross multiply
98,492,539.21x = 135,917,333.30 × 53,836,507.41 - Step 4: Simplify right side
98,492,539.21x = 7,317,314,520,977,792 - Step 5: Solve for x
x = 7,317,314,520,977,792/98,492,539.21 - Step 6: Final answer
x = 74,293,084.33
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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.