Finding the Fourth Proportional to 221,120,746.40, 331,681,119.60 and 195,611,578.40
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Solution
The fourth proportional to 221,120,746.40, 331,681,119.60 and 195,611,578.40 is: 293,417,367.60
Step by Step Solution
- Step 1: Write the proportion equation
221,120,746.40 : 331,681,119.60 = 195,611,578.40 : x - Step 2: Convert to fraction form
221,120,746.40/331,681,119.60 = 195,611,578.40/x - Step 3: Cross multiply
221,120,746.40x = 331,681,119.60 × 195,611,578.40 - Step 4: Simplify right side
221,120,746.40x = 64,880,667,330,435,184 - Step 5: Solve for x
x = 64,880,667,330,435,184/221,120,746.40 - Step 6: Final answer
x = 293,417,367.60
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1.5x scale
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.