Finding the Fourth Proportional to 147,905,129.70, 221,857,694.55 and 90,509,501.70
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Solution
The fourth proportional to 147,905,129.70, 221,857,694.55 and 90,509,501.70 is: 135,764,252.55
Step by Step Solution
- Step 1: Write the proportion equation
147,905,129.70 : 221,857,694.55 = 90,509,501.70 : x - Step 2: Convert to fraction form
147,905,129.70/221,857,694.55 = 90,509,501.70/x - Step 3: Cross multiply
147,905,129.70x = 221,857,694.55 × 90,509,501.70 - Step 4: Simplify right side
147,905,129.70x = 20,080,229,382,031,308 - Step 5: Solve for x
x = 20,080,229,382,031,308/147,905,129.70 - Step 6: Final answer
x = 135,764,252.55
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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.