Finding the Fourth Proportional to 2,809,879,974.80, 4,214,819,962.20 and 2,637,693,090.80
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Solution
The fourth proportional to 2,809,879,974.80, 4,214,819,962.20 and 2,637,693,090.80 is: 3,956,539,636.20
Step by Step Solution
- Step 1: Write the proportion equation
2,809,879,974.80 : 4,214,819,962.20 = 2,637,693,090.80 : x - Step 2: Convert to fraction form
2,809,879,974.80/4,214,819,962.20 = 2,637,693,090.80/x - Step 3: Cross multiply
2,809,879,974.80x = 4,214,819,962.20 × 2,637,693,090.80 - Step 4: Simplify right side
2,809,879,974.80x = 11,117,401,493,260,857,344 - Step 5: Solve for x
x = 11,117,401,493,260,857,344/2,809,879,974.80 - Step 6: Final answer
x = 3,956,539,636.20
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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.