Finding the Fourth Proportional to 5,119,903.74, 7,065,395.37 and 2,796,768.66
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Solution
The fourth proportional to 5,119,903.74, 7,065,395.37 and 2,796,768.66 is: 3,859,501.53
Step by Step Solution
- Step 1: Write the proportion equation
5,119,903.74 : 7,065,395.37 = 2,796,768.66 : x - Step 2: Convert to fraction form
5,119,903.74/7,065,395.37 = 2,796,768.66/x - Step 3: Cross multiply
5,119,903.74x = 7,065,395.37 × 2,796,768.66 - Step 4: Simplify right side
5,119,903.74x = 19,760,276,341,325.11 - Step 5: Solve for x
x = 19,760,276,341,325.11/5,119,903.74 - Step 6: Final answer
x = 3,859,501.53
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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.