Finding the Fourth Proportional to 139,968,175.30, 209,952,262.95 and 132,031,989.70
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Solution
The fourth proportional to 139,968,175.30, 209,952,262.95 and 132,031,989.70 is: 198,047,984.55
Step by Step Solution
- Step 1: Write the proportion equation
139,968,175.30 : 209,952,262.95 = 132,031,989.70 : x - Step 2: Convert to fraction form
139,968,175.30/209,952,262.95 = 132,031,989.70/x - Step 3: Cross multiply
139,968,175.30x = 209,952,262.95 × 132,031,989.70 - Step 4: Simplify right side
139,968,175.30x = 27,720,415,019,306,092 - Step 5: Solve for x
x = 27,720,415,019,306,092/139,968,175.30 - Step 6: Final answer
x = 198,047,984.55
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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.