Finding the Fourth Proportional to 8,748,020.70, 13,122,031.05 and 8,216,579.70
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Solution
The fourth proportional to 8,748,020.70, 13,122,031.05 and 8,216,579.70 is: 12,324,869.55
Step by Step Solution
- Step 1: Write the proportion equation
8,748,020.70 : 13,122,031.05 = 8,216,579.70 : x - Step 2: Convert to fraction form
8,748,020.70/13,122,031.05 = 8,216,579.70/x - Step 3: Cross multiply
8,748,020.70x = 13,122,031.05 × 8,216,579.70 - Step 4: Simplify right side
8,748,020.70x = 107,818,213,948,199.69 - Step 5: Solve for x
x = 107,818,213,948,199.69/8,748,020.70 - Step 6: Final answer
x = 12,324,869.55
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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.