Finding the Fourth Proportional to 3,129,743,408.40, 4,319,088,016.39 and 1,700,842,878.92
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Solution
The fourth proportional to 3,129,743,408.40, 4,319,088,016.39 and 1,700,842,878.92 is: 2,347,186,058.89
Step by Step Solution
- Step 1: Write the proportion equation
3,129,743,408.40 : 4,319,088,016.39 = 1,700,842,878.92 : x - Step 2: Convert to fraction form
3,129,743,408.40/4,319,088,016.39 = 1,700,842,878.92/x - Step 3: Cross multiply
3,129,743,408.40x = 4,319,088,016.39 × 1,700,842,878.92 - Step 4: Simplify right side
3,129,743,408.40x = 7,346,090,096,105,640,960 - Step 5: Solve for x
x = 7,346,090,096,105,640,960/3,129,743,408.40 - Step 6: Final answer
x = 2,347,186,058.89
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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.