Finding the Fourth Proportional to 13,133,495.98, 18,125,896.35 and 7,625,774.38
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Solution
The fourth proportional to 13,133,495.98, 18,125,896.35 and 7,625,774.38 is: 10,524,539.41
Step by Step Solution
- Step 1: Write the proportion equation
13,133,495.98 : 18,125,896.35 = 7,625,774.38 : x - Step 2: Convert to fraction form
13,133,495.98/18,125,896.35 = 7,625,774.38/x - Step 3: Cross multiply
13,133,495.98x = 18,125,896.35 × 7,625,774.38 - Step 4: Simplify right side
13,133,495.98x = 138,223,996,000,365.52 - Step 5: Solve for x
x = 138,223,996,000,365.52/13,133,495.98 - Step 6: Final answer
x = 10,524,539.41
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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.