Finding the Fourth Proportional to 7,388,691.99, 10,190,783.87 and 6,357,927.12
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Solution
The fourth proportional to 7,388,691.99, 10,190,783.87 and 6,357,927.12 is: 8,769,111.12
Step by Step Solution
- Step 1: Write the proportion equation
7,388,691.99 : 10,190,783.87 = 6,357,927.12 : x - Step 2: Convert to fraction form
7,388,691.99/10,190,783.87 = 6,357,927.12/x - Step 3: Cross multiply
7,388,691.99x = 10,190,783.87 × 6,357,927.12 - Step 4: Simplify right side
7,388,691.99x = 64,792,261,109,341.92 - Step 5: Solve for x
x = 64,792,261,109,341.92/7,388,691.99 - Step 6: Final answer
x = 8,769,111.12
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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.