Finding the Fourth Proportional to 12,838,502.36, 17,687,356.74 and 8,964,887.96
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Solution
The fourth proportional to 12,838,502.36, 17,687,356.74 and 8,964,887.96 is: 12,350,752.99
Step by Step Solution
- Step 1: Write the proportion equation
12,838,502.36 : 17,687,356.74 = 8,964,887.96 : x - Step 2: Convert to fraction form
12,838,502.36/17,687,356.74 = 8,964,887.96/x - Step 3: Cross multiply
12,838,502.36x = 17,687,356.74 × 8,964,887.96 - Step 4: Simplify right side
12,838,502.36x = 158,565,171,394,214.06 - Step 5: Solve for x
x = 158,565,171,394,214.06/12,838,502.36 - Step 6: Final answer
x = 12,350,752.99
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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.