Finding the Fourth Proportional to 7,187,701.25, 9,919,165.84 and 3,924,645.31
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Solution
The fourth proportional to 7,187,701.25, 9,919,165.84 and 3,924,645.31 is: 5,416,085.94
Step by Step Solution
- Step 1: Write the proportion equation
7,187,701.25 : 9,919,165.84 = 3,924,645.31 : x - Step 2: Convert to fraction form
7,187,701.25/9,919,165.84 = 3,924,645.31/x - Step 3: Cross multiply
7,187,701.25x = 9,919,165.84 × 3,924,645.31 - Step 4: Simplify right side
7,187,701.25x = 38,929,207,695,655.55 - Step 5: Solve for x
x = 38,929,207,695,655.55/7,187,701.25 - Step 6: Final answer
x = 5,416,085.94
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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.