Finding the Fourth Proportional to 8,159,713.20, 12,239,569.80 and 5,768,228.70
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Solution
The fourth proportional to 8,159,713.20, 12,239,569.80 and 5,768,228.70 is: 8,652,343.05
Step by Step Solution
- Step 1: Write the proportion equation
8,159,713.20 : 12,239,569.80 = 5,768,228.70 : x - Step 2: Convert to fraction form
8,159,713.20/12,239,569.80 = 5,768,228.70/x - Step 3: Cross multiply
8,159,713.20x = 12,239,569.80 × 5,768,228.70 - Step 4: Simplify right side
8,159,713.20x = 70,600,637,796,013.27 - Step 5: Solve for x
x = 70,600,637,796,013.27/8,159,713.20 - Step 6: Final answer
x = 8,652,343.05
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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.