Finding the Fourth Proportional to 166,485,904.70, 249,728,857.05 and 163,616,123.30
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Solution
The fourth proportional to 166,485,904.70, 249,728,857.05 and 163,616,123.30 is: 245,424,184.95
Step by Step Solution
- Step 1: Write the proportion equation
166,485,904.70 : 249,728,857.05 = 163,616,123.30 : x - Step 2: Convert to fraction form
166,485,904.70/249,728,857.05 = 163,616,123.30/x - Step 3: Cross multiply
166,485,904.70x = 249,728,857.05 × 163,616,123.30 - Step 4: Simplify right side
166,485,904.70x = 40,859,667,466,660,880 - Step 5: Solve for x
x = 40,859,667,466,660,880/166,485,904.70 - Step 6: Final answer
x = 245,424,184.95
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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.