Finding the Fourth Proportional to 78,804,335.80, 118,206,503.70 and 48,571,247.80
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Solution
The fourth proportional to 78,804,335.80, 118,206,503.70 and 48,571,247.80 is: 72,856,871.70
Step by Step Solution
- Step 1: Write the proportion equation
78,804,335.80 : 118,206,503.70 = 48,571,247.80 : x - Step 2: Convert to fraction form
78,804,335.80/118,206,503.70 = 48,571,247.80/x - Step 3: Cross multiply
78,804,335.80x = 118,206,503.70 × 48,571,247.80 - Step 4: Simplify right side
78,804,335.80x = 5,741,437,382,784,317 - Step 5: Solve for x
x = 5,741,437,382,784,317/78,804,335.80 - Step 6: Final answer
x = 72,856,871.70
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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.