Finding the Fourth Proportional to 12,234,718.80, 18,352,013.40 and 3,136,798.80
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Solution
The fourth proportional to 12,234,718.80, 18,352,013.40 and 3,136,798.80 is: 4,705,181.59
Step by Step Solution
- Step 1: Write the proportion equation
12,234,718.80 : 18,352,013.40 = 3,136,798.80 : x - Step 2: Convert to fraction form
12,234,718.80/18,352,013.40 = 3,136,798.80/x - Step 3: Cross multiply
12,234,718.80x = 18,352,013.40 × 3,136,798.80 - Step 4: Simplify right side
12,234,718.80x = 57,566,573,610,703.91 - Step 5: Solve for x
x = 57,566,573,610,703.91/12,234,718.80 - Step 6: Final answer
x = 4,705,181.59
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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.