Finding the Fourth Proportional to 9,277,639.21, 12,803,843.37 and 5,148,451.99
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Solution
The fourth proportional to 9,277,639.21, 12,803,843.37 and 5,148,451.99 is: 7,105,252.90
Step by Step Solution
- Step 1: Write the proportion equation
9,277,639.21 : 12,803,843.37 = 5,148,451.99 : x - Step 2: Convert to fraction form
9,277,639.21/12,803,843.37 = 5,148,451.99/x - Step 3: Cross multiply
9,277,639.21x = 12,803,843.37 × 5,148,451.99 - Step 4: Simplify right side
9,277,639.21x = 65,919,972,877,924.80 - Step 5: Solve for x
x = 65,919,972,877,924.80/9,277,639.21 - Step 6: Final answer
x = 7,105,252.90
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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.