Finding the Fourth Proportional to 166,415,523.20, 249,623,284.80 and 75,716,259.20
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Solution
The fourth proportional to 166,415,523.20, 249,623,284.80 and 75,716,259.20 is: 113,574,388.80
Step by Step Solution
- Step 1: Write the proportion equation
166,415,523.20 : 249,623,284.80 = 75,716,259.20 : x - Step 2: Convert to fraction form
166,415,523.20/249,623,284.80 = 75,716,259.20/x - Step 3: Cross multiply
166,415,523.20x = 249,623,284.80 × 75,716,259.20 - Step 4: Simplify right side
166,415,523.20x = 18,900,541,334,272,220 - Step 5: Solve for x
x = 18,900,541,334,272,220/166,415,523.20 - Step 6: Final answer
x = 113,574,388.80
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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.