Finding the Fourth Proportional to 13,621,214.88, 18,797,402.70 and 7,509,862.08
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Solution
The fourth proportional to 13,621,214.88, 18,797,402.70 and 7,509,862.08 is: 10,363,679.23
Step by Step Solution
- Step 1: Write the proportion equation
13,621,214.88 : 18,797,402.70 = 7,509,862.08 : x - Step 2: Convert to fraction form
13,621,214.88/18,797,402.70 = 7,509,862.08/x - Step 3: Cross multiply
13,621,214.88x = 18,797,402.70 × 7,509,862.08 - Step 4: Simplify right side
13,621,214.88x = 141,165,901,739,219.62 - Step 5: Solve for x
x = 141,165,901,739,219.62/13,621,214.88 - Step 6: Final answer
x = 10,363,679.23
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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.