Finding the Fourth Proportional to 478,260,622.80, 716,257,193.40 and 478,260,622.80
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Solution
The fourth proportional to 478,260,622.80, 716,257,193.40 and 478,260,622.80 is: 716,257,193.40
Step by Step Solution
- Step 1: Write the proportion equation
478,260,622.80 : 716,257,193.40 = 478,260,622.80 : x - Step 2: Convert to fraction form
478,260,622.80/716,257,193.40 = 478,260,622.80/x - Step 3: Cross multiply
478,260,622.80x = 716,257,193.40 × 478,260,622.80 - Step 4: Simplify right side
478,260,622.80x = 342,557,611,400,464,064 - Step 5: Solve for x
x = 342,557,611,400,464,064/478,260,622.80 - Step 6: Final answer
x = 716,257,193.40
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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.