Finding the Fourth Proportional to 78,894,137.80, 118,341,206.70 and 46,561,529.80
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Solution
The fourth proportional to 78,894,137.80, 118,341,206.70 and 46,561,529.80 is: 69,842,294.70
Step by Step Solution
- Step 1: Write the proportion equation
78,894,137.80 : 118,341,206.70 = 46,561,529.80 : x - Step 2: Convert to fraction form
78,894,137.80/118,341,206.70 = 46,561,529.80/x - Step 3: Cross multiply
78,894,137.80x = 118,341,206.70 × 46,561,529.80 - Step 4: Simplify right side
78,894,137.80x = 5,510,147,622,330,009 - Step 5: Solve for x
x = 5,510,147,622,330,009/78,894,137.80 - Step 6: Final answer
x = 69,842,294.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.