Finding the Fourth Proportional to 5,119,881.21, 7,065,364.32 and 2,796,746.13
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Solution
The fourth proportional to 5,119,881.21, 7,065,364.32 and 2,796,746.13 is: 3,859,470.47
Step by Step Solution
- Step 1: Write the proportion equation
5,119,881.21 : 7,065,364.32 = 2,796,746.13 : x - Step 2: Convert to fraction form
5,119,881.21/7,065,364.32 = 2,796,746.13/x - Step 3: Cross multiply
5,119,881.21x = 7,065,364.32 × 2,796,746.13 - Step 4: Simplify right side
5,119,881.21x = 19,760,030,319,000.08 - Step 5: Solve for x
x = 19,760,030,319,000.08/5,119,881.21 - Step 6: Final answer
x = 3,859,470.47
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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.