Finding the Fourth Proportional to 19,811,625.64, 27,328,460.10 and 12,457,820.20
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Solution
The fourth proportional to 19,811,625.64, 27,328,460.10 and 12,457,820.20 is: 17,184,508.15
Step by Step Solution
- Step 1: Write the proportion equation
19,811,625.64 : 27,328,460.10 = 12,457,820.20 : x - Step 2: Convert to fraction form
19,811,625.64/27,328,460.10 = 12,457,820.20/x - Step 3: Cross multiply
19,811,625.64x = 27,328,460.10 × 12,457,820.20 - Step 4: Simplify right side
19,811,625.64x = 340,453,042,268,674 - Step 5: Solve for x
x = 340,453,042,268,674/19,811,625.64 - Step 6: Final answer
x = 17,184,508.15
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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.