Finding the Fourth Proportional to 99,651,679.20, 149,477,518.80 and 53,735,176.80
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Solution
The fourth proportional to 99,651,679.20, 149,477,518.80 and 53,735,176.80 is: 80,602,765.20
Step by Step Solution
- Step 1: Write the proportion equation
99,651,679.20 : 149,477,518.80 = 53,735,176.80 : x - Step 2: Convert to fraction form
99,651,679.20/149,477,518.80 = 53,735,176.80/x - Step 3: Cross multiply
99,651,679.20x = 149,477,518.80 × 53,735,176.80 - Step 4: Simplify right side
99,651,679.20x = 8,032,200,900,343,324 - Step 5: Solve for x
x = 8,032,200,900,343,324/99,651,679.20 - Step 6: Final answer
x = 80,602,765.20
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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.