Finding the Fourth Proportional to 20,115,929,919.25, 27,751,260,645.61 and 11,973,167,506.63
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Solution
The fourth proportional to 20,115,929,919.25, 27,751,260,645.61 and 11,973,167,506.63 is: 16,517,779,370.07
Step by Step Solution
- Step 1: Write the proportion equation
20,115,929,919.25 : 27,751,260,645.61 = 11,973,167,506.63 : x - Step 2: Convert to fraction form
20,115,929,919.25/27,751,260,645.61 = 11,973,167,506.63/x - Step 3: Cross multiply
20,115,929,919.25x = 27,751,260,645.61 × 11,973,167,506.63 - Step 4: Simplify right side
20,115,929,919.25x = 332,270,492,230,037,536,768 - Step 5: Solve for x
x = 332,270,492,230,037,536,768/20,115,929,919.25 - Step 6: Final answer
x = 16,517,779,370.07
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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.