Finding the Fourth Proportional to 12,440,686.68, 17,160,133.18 and 8,254,280.95
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Solution
The fourth proportional to 12,440,686.68, 17,160,133.18 and 8,254,280.95 is: 11,385,590.20
Step by Step Solution
- Step 1: Write the proportion equation
12,440,686.68 : 17,160,133.18 = 8,254,280.95 : x - Step 2: Convert to fraction form
12,440,686.68/17,160,133.18 = 8,254,280.95/x - Step 3: Cross multiply
12,440,686.68x = 17,160,133.18 × 8,254,280.95 - Step 4: Simplify right side
12,440,686.68x = 141,644,560,407,136.91 - Step 5: Solve for x
x = 141,644,560,407,136.91/12,440,686.68 - Step 6: Final answer
x = 11,385,590.20
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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.