Finding the Fourth Proportional to 248,102,663.40, 372,153,995.10 and 166,473,325.80
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Solution
The fourth proportional to 248,102,663.40, 372,153,995.10 and 166,473,325.80 is: 249,709,988.70
Step by Step Solution
- Step 1: Write the proportion equation
248,102,663.40 : 372,153,995.10 = 166,473,325.80 : x - Step 2: Convert to fraction form
248,102,663.40/372,153,995.10 = 166,473,325.80/x - Step 3: Cross multiply
248,102,663.40x = 372,153,995.10 × 166,473,325.80 - Step 4: Simplify right side
248,102,663.40x = 61,953,713,274,053,912 - Step 5: Solve for x
x = 61,953,713,274,053,912/248,102,663.40 - Step 6: Final answer
x = 249,709,988.70
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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.