Finding the Fourth Proportional to 78,477,170.09, 108,291,455.62 and 45,439,649.02
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Solution
The fourth proportional to 78,477,170.09, 108,291,455.62 and 45,439,649.02 is: 62,702,639.88
Step by Step Solution
- Step 1: Write the proportion equation
78,477,170.09 : 108,291,455.62 = 45,439,649.02 : x - Step 2: Convert to fraction form
78,477,170.09/108,291,455.62 = 45,439,649.02/x - Step 3: Cross multiply
78,477,170.09x = 108,291,455.62 × 45,439,649.02 - Step 4: Simplify right side
78,477,170.09x = 4,920,725,734,469,051 - Step 5: Solve for x
x = 4,920,725,734,469,051/78,477,170.09 - Step 6: Final answer
x = 62,702,639.88
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.