Finding the Fourth Proportional to 221,290,351.45, 331,930,968.95 and 73,748,625.95
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Solution
The fourth proportional to 221,290,351.45, 331,930,968.95 and 73,748,625.95 is: 110,621,419.82
Step by Step Solution
- Step 1: Write the proportion equation
221,290,351.45 : 331,930,968.95 = 73,748,625.95 : x - Step 2: Convert to fraction form
221,290,351.45/331,930,968.95 = 73,748,625.95/x - Step 3: Cross multiply
221,290,351.45x = 331,930,968.95 × 73,748,625.95 - Step 4: Simplify right side
221,290,351.45x = 24,479,452,869,046,500 - Step 5: Solve for x
x = 24,479,452,869,046,500/221,290,351.45 - Step 6: Final answer
x = 110,621,419.82
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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.