Finding the Fourth Proportional to 99,036,025.08, 149,265,897.45 and 85,367,956.09
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Solution
The fourth proportional to 99,036,025.08, 149,265,897.45 and 85,367,956.09 is: 128,665,549.42
Step by Step Solution
- Step 1: Write the proportion equation
99,036,025.08 : 149,265,897.45 = 85,367,956.09 : x - Step 2: Convert to fraction form
99,036,025.08/149,265,897.45 = 85,367,956.09/x - Step 3: Cross multiply
99,036,025.08x = 149,265,897.45 × 85,367,956.09 - Step 4: Simplify right side
99,036,025.08x = 12,742,524,578,872,878 - Step 5: Solve for x
x = 12,742,524,578,872,878/99,036,025.08 - Step 6: Final answer
x = 128,665,549.42
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.