Finding the Fourth Proportional to 15,314,609.98, 21,134,303.49 and 8,439,338.14
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Solution
The fourth proportional to 15,314,609.98, 21,134,303.49 and 8,439,338.14 is: 11,646,364.73
Step by Step Solution
- Step 1: Write the proportion equation
15,314,609.98 : 21,134,303.49 = 8,439,338.14 : x - Step 2: Convert to fraction form
15,314,609.98/21,134,303.49 = 8,439,338.14/x - Step 3: Cross multiply
15,314,609.98x = 21,134,303.49 × 8,439,338.14 - Step 4: Simplify right side
15,314,609.98x = 178,359,533,505,492.09 - Step 5: Solve for x
x = 178,359,533,505,492.09/15,314,609.98 - Step 6: Final answer
x = 11,646,364.73
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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.