Finding the Fourth Proportional to 131,574,904.28, 181,575,518.14 and 72,035,207.32
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Solution
The fourth proportional to 131,574,904.28, 181,575,518.14 and 72,035,207.32 is: 99,409,763.32
Step by Step Solution
- Step 1: Write the proportion equation
131,574,904.28 : 181,575,518.14 = 72,035,207.32 : x - Step 2: Convert to fraction form
131,574,904.28/181,575,518.14 = 72,035,207.32/x - Step 3: Cross multiply
131,574,904.28x = 181,575,518.14 × 72,035,207.32 - Step 4: Simplify right side
131,574,904.28x = 13,079,830,093,451,318 - Step 5: Solve for x
x = 13,079,830,093,451,318/131,574,904.28 - Step 6: Final answer
x = 99,409,763.32
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.