Finding the Fourth Proportional to 664,026,445.08, 995,971,228.29 and 221,321,290.68
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Solution
The fourth proportional to 664,026,445.08, 995,971,228.29 and 221,321,290.68 is: 331,959,125.06
Step by Step Solution
- Step 1: Write the proportion equation
664,026,445.08 : 995,971,228.29 = 221,321,290.68 : x - Step 2: Convert to fraction form
664,026,445.08/995,971,228.29 = 221,321,290.68/x - Step 3: Cross multiply
664,026,445.08x = 995,971,228.29 × 221,321,290.68 - Step 4: Simplify right side
664,026,445.08x = 220,429,637,725,287,744 - Step 5: Solve for x
x = 220,429,637,725,287,744/664,026,445.08 - Step 6: Final answer
x = 331,959,125.06
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Double scale
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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.