Finding the Fourth Proportional to 14,257,720.32, 21,378,039.36 and 4,538,134.68
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Solution
The fourth proportional to 14,257,720.32, 21,378,039.36 and 4,538,134.68 is: 6,804,483.44
Step by Step Solution
- Step 1: Write the proportion equation
14,257,720.32 : 21,378,039.36 = 4,538,134.68 : x - Step 2: Convert to fraction form
14,257,720.32/21,378,039.36 = 4,538,134.68/x - Step 3: Cross multiply
14,257,720.32x = 21,378,039.36 × 4,538,134.68 - Step 4: Simplify right side
14,257,720.32x = 97,016,421,810,021 - Step 5: Solve for x
x = 97,016,421,810,021/14,257,720.32 - Step 6: Final answer
x = 6,804,483.44
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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.