Finding the Fourth Proportional to 664,302,587.20, 996,453,880.80 and 492,115,703.20
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Solution
The fourth proportional to 664,302,587.20, 996,453,880.80 and 492,115,703.20 is: 738,173,554.80
Step by Step Solution
- Step 1: Write the proportion equation
664,302,587.20 : 996,453,880.80 = 492,115,703.20 : x - Step 2: Convert to fraction form
664,302,587.20/996,453,880.80 = 492,115,703.20/x - Step 3: Cross multiply
664,302,587.20x = 996,453,880.80 × 492,115,703.20 - Step 4: Simplify right side
664,302,587.20x = 490,370,602,256,260,928 - Step 5: Solve for x
x = 490,370,602,256,260,928/664,302,587.20 - Step 6: Final answer
x = 738,173,554.80
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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.