Finding the Fourth Proportional to 166,168,769.51, 249,030,353.64 and 129,325,148.70
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Solution
The fourth proportional to 166,168,769.51, 249,030,353.64 and 129,325,148.70 is: 193,814,322.69
Step by Step Solution
- Step 1: Write the proportion equation
166,168,769.51 : 249,030,353.64 = 129,325,148.70 : x - Step 2: Convert to fraction form
166,168,769.51/249,030,353.64 = 129,325,148.70/x - Step 3: Cross multiply
166,168,769.51x = 249,030,353.64 × 129,325,148.70 - Step 4: Simplify right side
166,168,769.51x = 32,205,887,515,306,584 - Step 5: Solve for x
x = 32,205,887,515,306,584/166,168,769.51 - Step 6: Final answer
x = 193,814,322.69
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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.