Finding the Fourth Proportional to 130,741,704.36, 180,421,351.02 and 72,009,838.80
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Solution
The fourth proportional to 130,741,704.36, 180,421,351.02 and 72,009,838.80 is: 99,372,365.28
Step by Step Solution
- Step 1: Write the proportion equation
130,741,704.36 : 180,421,351.02 = 72,009,838.80 : x - Step 2: Convert to fraction form
130,741,704.36/180,421,351.02 = 72,009,838.80/x - Step 3: Cross multiply
130,741,704.36x = 180,421,351.02 × 72,009,838.80 - Step 4: Simplify right side
130,741,704.36x = 12,992,112,403,028,416 - Step 5: Solve for x
x = 12,992,112,403,028,416/130,741,704.36 - Step 6: Final answer
x = 99,372,365.28
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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.