Finding the Fourth Proportional to 137,173,209.06, 189,299,211.21 and 74,449,307.07
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Solution
The fourth proportional to 137,173,209.06, 189,299,211.21 and 74,449,307.07 is: 102,740,142.92
Step by Step Solution
- Step 1: Write the proportion equation
137,173,209.06 : 189,299,211.21 = 74,449,307.07 : x - Step 2: Convert to fraction form
137,173,209.06/189,299,211.21 = 74,449,307.07/x - Step 3: Cross multiply
137,173,209.06x = 189,299,211.21 × 74,449,307.07 - Step 4: Simplify right side
137,173,209.06x = 14,093,195,103,482,076 - Step 5: Solve for x
x = 14,093,195,103,482,076/137,173,209.06 - Step 6: Final answer
x = 102,740,142.92
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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.