Finding the Fourth Proportional to 2,990,080,878.82, 4,126,354,911.60 and 1,652,001,743.32
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Solution
The fourth proportional to 2,990,080,878.82, 4,126,354,911.60 and 1,652,001,743.32 is: 2,279,786,328.12
Step by Step Solution
- Step 1: Write the proportion equation
2,990,080,878.82 : 4,126,354,911.60 = 1,652,001,743.32 : x - Step 2: Convert to fraction form
2,990,080,878.82/4,126,354,911.60 = 1,652,001,743.32/x - Step 3: Cross multiply
2,990,080,878.82x = 4,126,354,911.60 × 1,652,001,743.32 - Step 4: Simplify right side
2,990,080,878.82x = 6,816,745,507,520,243,712 - Step 5: Solve for x
x = 6,816,745,507,520,243,712/2,990,080,878.82 - Step 6: Final answer
x = 2,279,786,328.12
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.