Finding the Fourth Proportional to 221,120,749.40, 331,681,124.10 and 195,611,581.40
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Solution
The fourth proportional to 221,120,749.40, 331,681,124.10 and 195,611,581.40 is: 293,417,372.10
Step by Step Solution
- Step 1: Write the proportion equation
221,120,749.40 : 331,681,124.10 = 195,611,581.40 : x - Step 2: Convert to fraction form
221,120,749.40/331,681,124.10 = 195,611,581.40/x - Step 3: Cross multiply
221,120,749.40x = 331,681,124.10 × 195,611,581.40 - Step 4: Simplify right side
221,120,749.40x = 64,880,669,205,730,656 - Step 5: Solve for x
x = 64,880,669,205,730,656/221,120,749.40 - Step 6: Final answer
x = 293,417,372.10
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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.