Finding the Fourth Proportional to 125,358,228.75, 187,938,447.14 and 79,202,811.49
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Solution
The fourth proportional to 125,358,228.75, 187,938,447.14 and 79,202,811.49 is: 118,741,733.58
Step by Step Solution
- Step 1: Write the proportion equation
125,358,228.75 : 187,938,447.14 = 79,202,811.49 : x - Step 2: Convert to fraction form
125,358,228.75/187,938,447.14 = 79,202,811.49/x - Step 3: Cross multiply
125,358,228.75x = 187,938,447.14 × 79,202,811.49 - Step 4: Simplify right side
125,358,228.75x = 14,885,253,400,280,912 - Step 5: Solve for x
x = 14,885,253,400,280,912/125,358,228.75 - Step 6: Final answer
x = 118,741,733.58
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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.