Finding the Fourth Proportional to 13,087,431.79, 19,604,575.60 and 6,606,508.79
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Solution
The fourth proportional to 13,087,431.79, 19,604,575.60 and 6,606,508.79 is: 9,896,349.65
Step by Step Solution
- Step 1: Write the proportion equation
13,087,431.79 : 19,604,575.60 = 6,606,508.79 : x - Step 2: Convert to fraction form
13,087,431.79/19,604,575.60 = 6,606,508.79/x - Step 3: Cross multiply
13,087,431.79x = 19,604,575.60 × 6,606,508.79 - Step 4: Simplify right side
13,087,431.79x = 129,517,801,025,619.53 - Step 5: Solve for x
x = 129,517,801,025,619.53/13,087,431.79 - Step 6: Final answer
x = 9,896,349.65
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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.