Finding the Fourth Proportional to 84,638,546.16, 115,238,611.68 and 84,369,807.60
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Solution
The fourth proportional to 84,638,546.16, 115,238,611.68 and 84,369,807.60 is: 114,872,713.87
Step by Step Solution
- Step 1: Write the proportion equation
84,638,546.16 : 115,238,611.68 = 84,369,807.60 : x - Step 2: Convert to fraction form
84,638,546.16/115,238,611.68 = 84,369,807.60/x - Step 3: Cross multiply
84,638,546.16x = 115,238,611.68 × 84,369,807.60 - Step 4: Simplify right side
84,638,546.16x = 9,722,659,495,532,712 - Step 5: Solve for x
x = 9,722,659,495,532,712/84,638,546.16 - Step 6: Final answer
x = 114,872,713.87
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Why These Related Problems?
These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.