Finding the Fourth Proportional to 77,281,725.40, 115,936,584.90 and 38,846,512.60
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Solution
The fourth proportional to 77,281,725.40, 115,936,584.90 and 38,846,512.60 is: 58,276,804.55
Step by Step Solution
- Step 1: Write the proportion equation
77,281,725.40 : 115,936,584.90 = 38,846,512.60 : x - Step 2: Convert to fraction form
77,281,725.40/115,936,584.90 = 38,846,512.60/x - Step 3: Cross multiply
77,281,725.40x = 115,936,584.90 × 38,846,512.60 - Step 4: Simplify right side
77,281,725.40x = 4,503,732,006,118,820 - Step 5: Solve for x
x = 4,503,732,006,118,820/77,281,725.40 - Step 6: Final answer
x = 58,276,804.55
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.