Finding the Fourth Proportional to 7,237,591.98, 9,987,991.68 and 3,929,884.35
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Solution
The fourth proportional to 7,237,591.98, 9,987,991.68 and 3,929,884.35 is: 5,423,302.71
Step by Step Solution
- Step 1: Write the proportion equation
7,237,591.98 : 9,987,991.68 = 3,929,884.35 : x - Step 2: Convert to fraction form
7,237,591.98/9,987,991.68 = 3,929,884.35/x - Step 3: Cross multiply
7,237,591.98x = 9,987,991.68 × 3,929,884.35 - Step 4: Simplify right side
7,237,591.98x = 39,251,652,191,162.21 - Step 5: Solve for x
x = 39,251,652,191,162.21/7,237,591.98 - Step 6: Final answer
x = 5,423,302.71
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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.