Finding the Fourth Proportional to 7,187,869.99, 9,919,662.47 and 3,924,987.64
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Solution
The fourth proportional to 7,187,869.99, 9,919,662.47 and 3,924,987.64 is: 5,416,702.39
Step by Step Solution
- Step 1: Write the proportion equation
7,187,869.99 : 9,919,662.47 = 3,924,987.64 : x - Step 2: Convert to fraction form
7,187,869.99/9,919,662.47 = 3,924,987.64/x - Step 3: Cross multiply
7,187,869.99x = 9,919,662.47 × 3,924,987.64 - Step 4: Simplify right side
7,187,869.99x = 38,934,552,558,016.48 - Step 5: Solve for x
x = 38,934,552,558,016.48/7,187,869.99 - Step 6: Final answer
x = 5,416,702.39
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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.