Finding the Fourth Proportional to 68,135,485.57, 94,027,352.12 and 38,766,817.51
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Solution
The fourth proportional to 68,135,485.57, 94,027,352.12 and 38,766,817.51 is: 53,498,425.53
Step by Step Solution
- Step 1: Write the proportion equation
68,135,485.57 : 94,027,352.12 = 38,766,817.51 : x - Step 2: Convert to fraction form
68,135,485.57/94,027,352.12 = 38,766,817.51/x - Step 3: Cross multiply
68,135,485.57x = 94,027,352.12 × 38,766,817.51 - Step 4: Simplify right side
68,135,485.57x = 3,645,141,200,584,551.50 - Step 5: Solve for x
x = 3,645,141,200,584,551.50/68,135,485.57 - Step 6: Final answer
x = 53,498,425.53
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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.