Finding the Fourth Proportional to 98,928,021.60, 148,322,912.40 and 58,517,704.80
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Solution
The fourth proportional to 98,928,021.60, 148,322,912.40 and 58,517,704.80 is: 87,735,671.48
Step by Step Solution
- Step 1: Write the proportion equation
98,928,021.60 : 148,322,912.40 = 58,517,704.80 : x - Step 2: Convert to fraction form
98,928,021.60/148,322,912.40 = 58,517,704.80/x - Step 3: Cross multiply
98,928,021.60x = 148,322,912.40 × 58,517,704.80 - Step 4: Simplify right side
98,928,021.60x = 8,679,516,402,899,459 - Step 5: Solve for x
x = 8,679,516,402,899,459/98,928,021.60 - Step 6: Final answer
x = 87,735,671.48
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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.