Finding the Fourth Proportional to 18,976,643.36, 28,466,715.12 and 6,197,214.56
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Solution
The fourth proportional to 18,976,643.36, 28,466,715.12 and 6,197,214.56 is: 9,296,393.36
Step by Step Solution
- Step 1: Write the proportion equation
18,976,643.36 : 28,466,715.12 = 6,197,214.56 : x - Step 2: Convert to fraction form
18,976,643.36/28,466,715.12 = 6,197,214.56/x - Step 3: Cross multiply
18,976,643.36x = 28,466,715.12 × 6,197,214.56 - Step 4: Simplify right side
18,976,643.36x = 176,414,341,417,036.16 - Step 5: Solve for x
x = 176,414,341,417,036.16/18,976,643.36 - Step 6: Final answer
x = 9,296,393.36
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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.