Finding the Fourth Proportional to 129,749,102.64, 179,054,235.99 and 70,210,399.05
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Solution
The fourth proportional to 129,749,102.64, 179,054,235.99 and 70,210,399.05 is: 96,890,607.37
Step by Step Solution
- Step 1: Write the proportion equation
129,749,102.64 : 179,054,235.99 = 70,210,399.05 : x - Step 2: Convert to fraction form
129,749,102.64/179,054,235.99 = 70,210,399.05/x - Step 3: Cross multiply
129,749,102.64x = 179,054,235.99 × 70,210,399.05 - Step 4: Simplify right side
129,749,102.64x = 12,571,469,360,450,772 - Step 5: Solve for x
x = 12,571,469,360,450,772/129,749,102.64 - Step 6: Final answer
x = 96,890,607.37
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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.