Finding the Fourth Proportional to 7,778,879.54, 11,668,225.45 and 2,021,103.62
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Solution
The fourth proportional to 7,778,879.54, 11,668,225.45 and 2,021,103.62 is: 3,031,631.04
Step by Step Solution
- Step 1: Write the proportion equation
7,778,879.54 : 11,668,225.45 = 2,021,103.62 : x - Step 2: Convert to fraction form
7,778,879.54/11,668,225.45 = 2,021,103.62/x - Step 3: Cross multiply
7,778,879.54x = 11,668,225.45 × 2,021,103.62 - Step 4: Simplify right side
7,778,879.54x = 23,582,692,695,971.13 - Step 5: Solve for x
x = 23,582,692,695,971.13/7,778,879.54 - Step 6: Final answer
x = 3,031,631.04
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.