Finding the Fourth Proportional to 166,486,021.20, 249,729,031.80 and 163,616,239.80
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Solution
The fourth proportional to 166,486,021.20, 249,729,031.80 and 163,616,239.80 is: 245,424,359.70
Step by Step Solution
- Step 1: Write the proportion equation
166,486,021.20 : 249,729,031.80 = 163,616,239.80 : x - Step 2: Convert to fraction form
166,486,021.20/249,729,031.80 = 163,616,239.80/x - Step 3: Cross multiply
166,486,021.20x = 249,729,031.80 × 163,616,239.80 - Step 4: Simplify right side
166,486,021.20x = 40,859,725,152,010,632 - Step 5: Solve for x
x = 40,859,725,152,010,632/166,486,021.20 - Step 6: Final answer
x = 245,424,359.70
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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.