Finding the Fourth Proportional to 99,651,704.80, 149,477,557.20 and 86,897,120.80
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Solution
The fourth proportional to 99,651,704.80, 149,477,557.20 and 86,897,120.80 is: 130,345,681.20
Step by Step Solution
- Step 1: Write the proportion equation
99,651,704.80 : 149,477,557.20 = 86,897,120.80 : x - Step 2: Convert to fraction form
99,651,704.80/149,477,557.20 = 86,897,120.80/x - Step 3: Cross multiply
99,651,704.80x = 149,477,557.20 × 86,897,120.80 - Step 4: Simplify right side
99,651,704.80x = 12,989,169,344,897,308 - Step 5: Solve for x
x = 12,989,169,344,897,308/99,651,704.80 - Step 6: Final answer
x = 130,345,681.20
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1.5x scale
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.